Finding the Fourth Proportional to 17,105.30, 25,616.26 and 9,687.28

Step by Step Solution

1. Step 1: Write the proportion equation
   17,105.30 : 25,616.26 = 9,687.28 : x
2. Step 2: Convert to fraction form
   17,105.30/25,616.26 = 9,687.28/x
3. Step 3: Cross multiply
   17,105.30x = 25,616.26 × 9,687.28
4. Step 4: Simplify right side
   17,105.30x = 248,151,883.17
5. Step 5: Solve for x
   x = 248,151,883.17/17,105.30
6. Step 6: Final answer
   x = 14,507.31