Finding the Fourth Proportional to 31,689.72, 43,732.27 and 17,542.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,689.72 : 43,732.27 = 17,542.56 : x
2. Step 2: Convert to fraction form
   31,689.72/43,732.27 = 17,542.56/x
3. Step 3: Cross multiply
   31,689.72x = 43,732.27 × 17,542.56
4. Step 4: Simplify right side
   31,689.72x = 767,175,970.41
5. Step 5: Solve for x
   x = 767,175,970.41/31,689.72
6. Step 6: Final answer
   x = 24,208.99