Finding the Fourth Proportional to 17,126.22, 25,687.98 and 5,439.54

Step by Step Solution

1. Step 1: Write the proportion equation
   17,126.22 : 25,687.98 = 5,439.54 : x
2. Step 2: Convert to fraction form
   17,126.22/25,687.98 = 5,439.54/x
3. Step 3: Cross multiply
   17,126.22x = 25,687.98 × 5,439.54
4. Step 4: Simplify right side
   17,126.22x = 139,730,794.73
5. Step 5: Solve for x
   x = 139,730,794.73/17,126.22
6. Step 6: Final answer
   x = 8,158.88