Finding the Fourth Proportional to 113,753.30, 156,978.48 and 62,766.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,753.30 : 156,978.48 = 62,766.50 : x
2. Step 2: Convert to fraction form
   113,753.30/156,978.48 = 62,766.50/x
3. Step 3: Cross multiply
   113,753.30x = 156,978.48 × 62,766.50
4. Step 4: Simplify right side
   113,753.30x = 9,852,989,764.92
5. Step 5: Solve for x
   x = 9,852,989,764.92/113,753.30
6. Step 6: Final answer
   x = 86,617.18