Finding the Fourth Proportional to 31,875.88, 43,990.34 and 17,729

Step by Step Solution

1. Step 1: Write the proportion equation
   31,875.88 : 43,990.34 = 17,729 : x
2. Step 2: Convert to fraction form
   31,875.88/43,990.34 = 17,729/x
3. Step 3: Cross multiply
   31,875.88x = 43,990.34 × 17,729
4. Step 4: Simplify right side
   31,875.88x = 779,904,737.86
5. Step 5: Solve for x
   x = 779,904,737.86/31,875.88
6. Step 6: Final answer
   x = 24,466.92