Finding the Fourth Proportional to 102,060.60, 140,781.42 and 71,792.52

Step by Step Solution

1. Step 1: Write the proportion equation
   102,060.60 : 140,781.42 = 71,792.52 : x
2. Step 2: Convert to fraction form
   102,060.60/140,781.42 = 71,792.52/x
3. Step 3: Cross multiply
   102,060.60x = 140,781.42 × 71,792.52
4. Step 4: Simplify right side
   102,060.60x = 10,107,052,910.98
5. Step 5: Solve for x
   x = 10,107,052,910.98/102,060.60
6. Step 6: Final answer
   x = 99,029.92