Finding the Fourth Proportional to 87,045.31, 120,159.27 and 58,789.27

Step by Step Solution

1. Step 1: Write the proportion equation
   87,045.31 : 120,159.27 = 58,789.27 : x
2. Step 2: Convert to fraction form
   87,045.31/120,159.27 = 58,789.27/x
3. Step 3: Cross multiply
   87,045.31x = 120,159.27 × 58,789.27
4. Step 4: Simplify right side
   87,045.31x = 7,064,074,872.29
5. Step 5: Solve for x
   x = 7,064,074,872.29/87,045.31
6. Step 6: Final answer
   x = 81,154.00