Finding the Fourth Proportional to 113,070.71, 156,065.87 and 65,354.02

Step by Step Solution

1. Step 1: Write the proportion equation
   113,070.71 : 156,065.87 = 65,354.02 : x
2. Step 2: Convert to fraction form
   113,070.71/156,065.87 = 65,354.02/x
3. Step 3: Cross multiply
   113,070.71x = 156,065.87 × 65,354.02
4. Step 4: Simplify right side
   113,070.71x = 10,199,531,989.30
5. Step 5: Solve for x
   x = 10,199,531,989.30/113,070.71
6. Step 6: Final answer
   x = 90,204.90