Hey! I'll provide the steps required.
First, solved the proportion by cross multiplication.

Then use the commutative property to reorder the terms as well as multiply the numbers.
90x = 9720
Finally, divide it by 90.
x = 108
..........The answer is D
Answer:
what was the answer
Step-by-step explanation:
Well first all you have to do is simplifying both sides of the equation then of course isolating the variable then you should end up with

Hopefully this helps ^0^ Mark Brain