Finding the Fourth Proportional to 17,105.10, 25,657.50 and 5,418.02

Step by Step Solution

1. Step 1: Write the proportion equation
   17,105.10 : 25,657.50 = 5,418.02 : x
2. Step 2: Convert to fraction form
   17,105.10/25,657.50 = 5,418.02/x
3. Step 3: Cross multiply
   17,105.10x = 25,657.50 × 5,418.02
4. Step 4: Simplify right side
   17,105.10x = 139,012,848.15
5. Step 5: Solve for x
   x = 139,012,848.15/17,105.10
6. Step 6: Final answer
   x = 8,126.98