Finding the Fourth Proportional to 17,098.64, 25,648.72 and 5,412.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,098.64 : 25,648.72 = 5,412.72 : x
2. Step 2: Convert to fraction form
   17,098.64/25,648.72 = 5,412.72/x
3. Step 3: Cross multiply
   17,098.64x = 25,648.72 × 5,412.72
4. Step 4: Simplify right side
   17,098.64x = 138,829,339.72
5. Step 5: Solve for x
   x = 138,829,339.72/17,098.64
6. Step 6: Final answer
   x = 8,119.32