Finding the Fourth Proportional to 12,651.24, 17,460.90 and 7,616.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,651.24 : 17,460.90 = 7,616.28 : x
2. Step 2: Convert to fraction form
   12,651.24/17,460.90 = 7,616.28/x
3. Step 3: Cross multiply
   12,651.24x = 17,460.90 × 7,616.28
4. Step 4: Simplify right side
   12,651.24x = 132,987,103.45
5. Step 5: Solve for x
   x = 132,987,103.45/12,651.24
6. Step 6: Final answer
   x = 10,511.78