Finding the Fourth Proportional to 31,397.98, 43,329 and 17,057.68

Step by Step Solution

1. Step 1: Write the proportion equation
   31,397.98 : 43,329 = 17,057.68 : x
2. Step 2: Convert to fraction form
   31,397.98/43,329 = 17,057.68/x
3. Step 3: Cross multiply
   31,397.98x = 43,329 × 17,057.68
4. Step 4: Simplify right side
   31,397.98x = 739,092,216.72
5. Step 5: Solve for x
   x = 739,092,216.72/31,397.98
6. Step 6: Final answer
   x = 23,539.48