Finding the Fourth Proportional to 31,713.71, 43,743.82 and 20,397.52

Step by Step Solution

1. Step 1: Write the proportion equation
   31,713.71 : 43,743.82 = 20,397.52 : x
2. Step 2: Convert to fraction form
   31,713.71/43,743.82 = 20,397.52/x
3. Step 3: Cross multiply
   31,713.71x = 43,743.82 × 20,397.52
4. Step 4: Simplify right side
   31,713.71x = 892,265,443.33
5. Step 5: Solve for x
   x = 892,265,443.33/31,713.71
6. Step 6: Final answer
   x = 28,135.01