Finding the Fourth Proportional to 31,778.73, 43,854.82 and 17,631.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,778.73 : 43,854.82 = 17,631.57 : x
2. Step 2: Convert to fraction form
   31,778.73/43,854.82 = 17,631.57/x
3. Step 3: Cross multiply
   31,778.73x = 43,854.82 × 17,631.57
4. Step 4: Simplify right side
   31,778.73x = 773,229,449.04
5. Step 5: Solve for x
   x = 773,229,449.04/31,778.73
6. Step 6: Final answer
   x = 24,331.67