Finding the Fourth Proportional to 17,689.38, 24,391.41 and 13,647

Step by Step Solution

1. Step 1: Write the proportion equation
   17,689.38 : 24,391.41 = 13,647 : x
2. Step 2: Convert to fraction form
   17,689.38/24,391.41 = 13,647/x
3. Step 3: Cross multiply
   17,689.38x = 24,391.41 × 13,647
4. Step 4: Simplify right side
   17,689.38x = 332,869,572.27
5. Step 5: Solve for x
   x = 332,869,572.27/17,689.38
6. Step 6: Final answer
   x = 18,817.48