Finding the Fourth Proportional to 124,132.58, 171,280.29 and 81,100.62

Step by Step Solution

1. Step 1: Write the proportion equation
   124,132.58 : 171,280.29 = 81,100.62 : x
2. Step 2: Convert to fraction form
   124,132.58/171,280.29 = 81,100.62/x
3. Step 3: Cross multiply
   124,132.58x = 171,280.29 × 81,100.62
4. Step 4: Simplify right side
   124,132.58x = 13,890,937,712.78
5. Step 5: Solve for x
   x = 13,890,937,712.78/124,132.58
6. Step 6: Final answer
   x = 111,904.05