Finding the Fourth Proportional to 17,809.47, 24,689.46 and 16,861.47

Step by Step Solution

1. Step 1: Write the proportion equation
   17,809.47 : 24,689.46 = 16,861.47 : x
2. Step 2: Convert to fraction form
   17,809.47/24,689.46 = 16,861.47/x
3. Step 3: Cross multiply
   17,809.47x = 24,689.46 × 16,861.47
4. Step 4: Simplify right side
   17,809.47x = 416,300,464.91
5. Step 5: Solve for x
   x = 416,300,464.91/17,809.47
6. Step 6: Final answer
   x = 23,375.23