Finding the Fourth Proportional to 99,057.60, 136,673.06 and 58,737.83

Step by Step Solution

1. Step 1: Write the proportion equation
   99,057.60 : 136,673.06 = 58,737.83 : x
2. Step 2: Convert to fraction form
   99,057.60/136,673.06 = 58,737.83/x
3. Step 3: Cross multiply
   99,057.60x = 136,673.06 × 58,737.83
4. Step 4: Simplify right side
   99,057.60x = 8,027,877,986.81
5. Step 5: Solve for x
   x = 8,027,877,986.81/99,057.60
6. Step 6: Final answer
   x = 81,042.52