Finding the Fourth Proportional to 31,687.43, 43,724.07 and 17,540.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,687.43 : 43,724.07 = 17,540.24 : x
2. Step 2: Convert to fraction form
   31,687.43/43,724.07 = 17,540.24/x
3. Step 3: Cross multiply
   31,687.43x = 43,724.07 × 17,540.24
4. Step 4: Simplify right side
   31,687.43x = 766,930,462.96
5. Step 5: Solve for x
   x = 766,930,462.96/31,687.43
6. Step 6: Final answer
   x = 24,202.99