Finding the Fourth Proportional to 129,500.72, 194,200.02 and 62,921.15

Step by Step Solution

1. Step 1: Write the proportion equation
   129,500.72 : 194,200.02 = 62,921.15 : x
2. Step 2: Convert to fraction form
   129,500.72/194,200.02 = 62,921.15/x
3. Step 3: Cross multiply
   129,500.72x = 194,200.02 × 62,921.15
4. Step 4: Simplify right side
   129,500.72x = 12,219,287,617.42
5. Step 5: Solve for x
   x = 12,219,287,617.42/129,500.72
6. Step 6: Final answer
   x = 94,356.91