Answer:
$5,412,000
Explanation:
Given:
Long-term debt (bonds, at par):$10,000,000
Preferred stock :2,000,000
Common stock ($10 par): 10,000,000
Retained earnings: 4,000,000
Total debt and equity :$26,000,000
Coupon rate = 4%(semi annually)
Par value = $1000
YTM = 12%
Required:
Find the current market value of the firm's debt.
Find the bond price:
Bond price
Bond price = $541.20
Find number of bonds:
Number of bonds 
Now, to find the current market value of the firm's debt, use:
Current market value of debt = number of bonds × bond price
= 10,000 × 541.20
= $5,412,000
Current market value of the firm's debt = $5,412,000