Finding the Fourth Proportional to 88,854.40, 133,062.90 and 59,111.20

Step by Step Solution

1. Step 1: Write the proportion equation
   88,854.40 : 133,062.90 = 59,111.20 : x
2. Step 2: Convert to fraction form
   88,854.40/133,062.90 = 59,111.20/x
3. Step 3: Cross multiply
   88,854.40x = 133,062.90 × 59,111.20
4. Step 4: Simplify right side
   88,854.40x = 7,865,507,694.48
5. Step 5: Solve for x
   x = 7,865,507,694.48/88,854.40
6. Step 6: Final answer
   x = 88,521.31