Finding the Fourth Proportional to 31,007.38, 42,789.27 and 17,579.86

Step by Step Solution

1. Step 1: Write the proportion equation
   31,007.38 : 42,789.27 = 17,579.86 : x
2. Step 2: Convert to fraction form
   31,007.38/42,789.27 = 17,579.86/x
3. Step 3: Cross multiply
   31,007.38x = 42,789.27 × 17,579.86
4. Step 4: Simplify right side
   31,007.38x = 752,229,376.10
5. Step 5: Solve for x
   x = 752,229,376.10/31,007.38
6. Step 6: Final answer
   x = 24,259.69