Finding the Fourth Proportional to 12,516.52, 17,271.09 and 7,479.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,516.52 : 17,271.09 = 7,479.69 : x
2. Step 2: Convert to fraction form
   12,516.52/17,271.09 = 7,479.69/x
3. Step 3: Cross multiply
   12,516.52x = 17,271.09 × 7,479.69
4. Step 4: Simplify right side
   12,516.52x = 129,182,399.16
5. Step 5: Solve for x
   x = 129,182,399.16/12,516.52
6. Step 6: Final answer
   x = 10,320.95