Finding the Fourth Proportional to 99,150.57, 136,827.89 and 58,872.37

Step by Step Solution

1. Step 1: Write the proportion equation
   99,150.57 : 136,827.89 = 58,872.37 : x
2. Step 2: Convert to fraction form
   99,150.57/136,827.89 = 58,872.37/x
3. Step 3: Cross multiply
   99,150.57x = 136,827.89 × 58,872.37
4. Step 4: Simplify right side
   99,150.57x = 8,055,382,166.40
5. Step 5: Solve for x
   x = 8,055,382,166.40/99,150.57
6. Step 6: Final answer
   x = 81,243.93