Finding the Fourth Proportional to 146,580.38, 202,285.89 and 86,150.15

Step by Step Solution

1. Step 1: Write the proportion equation
   146,580.38 : 202,285.89 = 86,150.15 : x
2. Step 2: Convert to fraction form
   146,580.38/202,285.89 = 86,150.15/x
3. Step 3: Cross multiply
   146,580.38x = 202,285.89 × 86,150.15
4. Step 4: Simplify right side
   146,580.38x = 17,426,959,766.38
5. Step 5: Solve for x
   x = 17,426,959,766.38/146,580.38
6. Step 6: Final answer
   x = 118,890.13