Finding the Fourth Proportional to 117,061.52, 161,355.72 and 91,522.64

Step by Step Solution

1. Step 1: Write the proportion equation
   117,061.52 : 161,355.72 = 91,522.64 : x
2. Step 2: Convert to fraction form
   117,061.52/161,355.72 = 91,522.64/x
3. Step 3: Cross multiply
   117,061.52x = 161,355.72 × 91,522.64
4. Step 4: Simplify right side
   117,061.52x = 14,767,701,473.50
5. Step 5: Solve for x
   x = 14,767,701,473.50/117,061.52
6. Step 6: Final answer
   x = 126,153.34