Finding the Fourth Proportional to 31,899.41, 44,019.31 and 18,469.71

Step by Step Solution

1. Step 1: Write the proportion equation
   31,899.41 : 44,019.31 = 18,469.71 : x
2. Step 2: Convert to fraction form
   31,899.41/44,019.31 = 18,469.71/x
3. Step 3: Cross multiply
   31,899.41x = 44,019.31 × 18,469.71
4. Step 4: Simplify right side
   31,899.41x = 813,023,890.10
5. Step 5: Solve for x
   x = 813,023,890.10/31,899.41
6. Step 6: Final answer
   x = 25,487.11