Finding the Fourth Proportional to 17,108.40, 25,662.56 and 5,422.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,108.40 : 25,662.56 = 5,422.50 : x
2. Step 2: Convert to fraction form
   17,108.40/25,662.56 = 5,422.50/x
3. Step 3: Cross multiply
   17,108.40x = 25,662.56 × 5,422.50
4. Step 4: Simplify right side
   17,108.40x = 139,155,231.60
5. Step 5: Solve for x
   x = 139,155,231.60/17,108.40
6. Step 6: Final answer
   x = 8,133.74