Finding the Fourth Proportional to 31,788.35, 43,868.18 and 17,641.43

Step by Step Solution

1. Step 1: Write the proportion equation
   31,788.35 : 43,868.18 = 17,641.43 : x
2. Step 2: Convert to fraction form
   31,788.35/43,868.18 = 17,641.43/x
3. Step 3: Cross multiply
   31,788.35x = 43,868.18 × 17,641.43
4. Step 4: Simplify right side
   31,788.35x = 773,897,426.70
5. Step 5: Solve for x
   x = 773,897,426.70/31,788.35
6. Step 6: Final answer
   x = 24,345.32