Finding the Fourth Proportional to 31,866.89, 43,974.50 and 17,719.43

Step by Step Solution

1. Step 1: Write the proportion equation
   31,866.89 : 43,974.50 = 17,719.43 : x
2. Step 2: Convert to fraction form
   31,866.89/43,974.50 = 17,719.43/x
3. Step 3: Cross multiply
   31,866.89x = 43,974.50 × 17,719.43
4. Step 4: Simplify right side
   31,866.89x = 779,202,766.07
5. Step 5: Solve for x
   x = 779,202,766.07/31,866.89
6. Step 6: Final answer
   x = 24,451.80