Finding the Fourth Proportional to 90,857.97, 125,436.15 and 60,742.98

Step by Step Solution

1. Step 1: Write the proportion equation
   90,857.97 : 125,436.15 = 60,742.98 : x
2. Step 2: Convert to fraction form
   90,857.97/125,436.15 = 60,742.98/x
3. Step 3: Cross multiply
   90,857.97x = 125,436.15 × 60,742.98
4. Step 4: Simplify right side
   90,857.97x = 7,619,365,550.73
5. Step 5: Solve for x
   x = 7,619,365,550.73/90,857.97
6. Step 6: Final answer
   x = 83,860.18