Finding the Fourth Proportional to 12,760.97, 17,605.22 and 9,411.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,760.97 : 17,605.22 = 9,411.72 : x
2. Step 2: Convert to fraction form
   12,760.97/17,605.22 = 9,411.72/x
3. Step 3: Cross multiply
   12,760.97x = 17,605.22 × 9,411.72
4. Step 4: Simplify right side
   12,760.97x = 165,695,288.10
5. Step 5: Solve for x
   x = 165,695,288.10/12,760.97
6. Step 6: Final answer
   x = 12,984.54