Finding the Fourth Proportional to 113,680.55, 156,880.14 and 62,695.10

Step by Step Solution

1. Step 1: Write the proportion equation
   113,680.55 : 156,880.14 = 62,695.10 : x
2. Step 2: Convert to fraction form
   113,680.55/156,880.14 = 62,695.10/x
3. Step 3: Cross multiply
   113,680.55x = 156,880.14 × 62,695.10
4. Step 4: Simplify right side
   113,680.55x = 9,835,615,280.91
5. Step 5: Solve for x
   x = 9,835,615,280.91/113,680.55
6. Step 6: Final answer
   x = 86,519.78