Finding the Fourth Proportional to 99,229.46, 149,506.16 and 89,752.73

Step by Step Solution

1. Step 1: Write the proportion equation
   99,229.46 : 149,506.16 = 89,752.73 : x
2. Step 2: Convert to fraction form
   99,229.46/149,506.16 = 89,752.73/x
3. Step 3: Cross multiply
   99,229.46x = 149,506.16 × 89,752.73
4. Step 4: Simplify right side
   99,229.46x = 13,418,584,815.52
5. Step 5: Solve for x
   x = 13,418,584,815.52/99,229.46
6. Step 6: Final answer
   x = 135,227.84