Finding the Fourth Proportional to 16,861.38, 25,296.18 and 5,616.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,861.38 : 25,296.18 = 5,616.69 : x
2. Step 2: Convert to fraction form
   16,861.38/25,296.18 = 5,616.69/x
3. Step 3: Cross multiply
   16,861.38x = 25,296.18 × 5,616.69
4. Step 4: Simplify right side
   16,861.38x = 142,080,801.24
5. Step 5: Solve for x
   x = 142,080,801.24/16,861.38
6. Step 6: Final answer
   x = 8,426.40