Answer:
Weight of debt = 57.83 %
Explanation:
given data 
number of shares =  7,100
price = $94 per share
number of bonds = 600
mature time = 30 year s
coupon rate = 6.8 percent
bonds par value = $2,000
sell = 108.5 percent
stock outstanding = 6,000 shares
stock outstanding price = $47 per share
to find out 
capital structure weight of the debt
solution
first we get here Equity market value that is express as 
Equity market value = number of shares × price per share 
Equity market value = 7100 × $94
Equity market value = $667,400
and  
current debt value will be here as 
current debt value = number of bonds × price per bond 
current debt value = 600 × (1.085 × 2000) 
current debt value = $1,302,000
and now Preferred stock value will be
Preferred stock value = stock outstanding × stock outstanding price 
Preferred stock value = 6,000  × $47
Preferred stock value = $282000
and total capital will be as  
Total capital = Equity market value + current debt value + preferred stock value ..................1
put here value 
Total capital =  $667,400 +  $1,302,000 + $282000
total capital = $2251400
so here Weight of debt will be 
Weight of debt = debt value ÷ total capital ..............2
Weight of debt = 
Weight of debt = 0.578306
Weight of debt = 57.83 %