Finding the Fourth Proportional to 17,116.56, 25,677 and 5,425.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,116.56 : 25,677 = 5,425.60 : x
2. Step 2: Convert to fraction form
   17,116.56/25,677 = 5,425.60/x
3. Step 3: Cross multiply
   17,116.56x = 25,677 × 5,425.60
4. Step 4: Simplify right side
   17,116.56x = 139,313,131.20
5. Step 5: Solve for x
   x = 139,313,131.20/17,116.56
6. Step 6: Final answer
   x = 8,139.08