Finding the Fourth Proportional to 113,610.10, 156,763.50 and 65,854.12

Step by Step Solution

1. Step 1: Write the proportion equation
   113,610.10 : 156,763.50 = 65,854.12 : x
2. Step 2: Convert to fraction form
   113,610.10/156,763.50 = 65,854.12/x
3. Step 3: Cross multiply
   113,610.10x = 156,763.50 × 65,854.12
4. Step 4: Simplify right side
   113,610.10x = 10,323,522,340.62
5. Step 5: Solve for x
   x = 10,323,522,340.62/113,610.10
6. Step 6: Final answer
   x = 90,868.00