Finding the Fourth Proportional to 124,737.60, 172,122.56 and 71,022.72

Step by Step Solution

1. Step 1: Write the proportion equation
   124,737.60 : 172,122.56 = 71,022.72 : x
2. Step 2: Convert to fraction form
   124,737.60/172,122.56 = 71,022.72/x
3. Step 3: Cross multiply
   124,737.60x = 172,122.56 × 71,022.72
4. Step 4: Simplify right side
   124,737.60x = 12,224,612,384.56
5. Step 5: Solve for x
   x = 12,224,612,384.56/124,737.60
6. Step 6: Final answer
   x = 98,002.63