Finding the Fourth Proportional to 12,760.84, 17,605.04 and 9,411.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,760.84 : 17,605.04 = 9,411.59 : x
2. Step 2: Convert to fraction form
   12,760.84/17,605.04 = 9,411.59/x
3. Step 3: Cross multiply
   12,760.84x = 17,605.04 × 9,411.59
4. Step 4: Simplify right side
   12,760.84x = 165,691,418.41
5. Step 5: Solve for x
   x = 165,691,418.41/12,760.84
6. Step 6: Final answer
   x = 12,984.37