Finding the Fourth Proportional to 17,018.72, 25,525.08 and 8,251.28

Step by Step Solution

1. Step 1: Write the proportion equation
   17,018.72 : 25,525.08 = 8,251.28 : x
2. Step 2: Convert to fraction form
   17,018.72/25,525.08 = 8,251.28/x
3. Step 3: Cross multiply
   17,018.72x = 25,525.08 × 8,251.28
4. Step 4: Simplify right side
   17,018.72x = 210,614,582.10
5. Step 5: Solve for x
   x = 210,614,582.10/17,018.72
6. Step 6: Final answer
   x = 12,375.47