Finding the Fourth Proportional to 31,664.86, 43,697.49 and 17,517.71

Step by Step Solution

1. Step 1: Write the proportion equation
   31,664.86 : 43,697.49 = 17,517.71 : x
2. Step 2: Convert to fraction form
   31,664.86/43,697.49 = 17,517.71/x
3. Step 3: Cross multiply
   31,664.86x = 43,697.49 × 17,517.71
4. Step 4: Simplify right side
   31,664.86x = 765,479,957.55
5. Step 5: Solve for x
   x = 765,479,957.55/31,664.86
6. Step 6: Final answer
   x = 24,174.43