Finding the Fourth Proportional to 124,487.86, 171,792.42 and 70,772.89

Step by Step Solution

1. Step 1: Write the proportion equation
   124,487.86 : 171,792.42 = 70,772.89 : x
2. Step 2: Convert to fraction form
   124,487.86/171,792.42 = 70,772.89/x
3. Step 3: Cross multiply
   124,487.86x = 171,792.42 × 70,772.89
4. Step 4: Simplify right side
   124,487.86x = 12,158,246,043.49
5. Step 5: Solve for x
   x = 12,158,246,043.49/124,487.86
6. Step 6: Final answer
   x = 97,666.12