Finding the Fourth Proportional to 12,715.22, 17,545.38 and 7,049.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,715.22 : 17,545.38 = 7,049.92 : x
2. Step 2: Convert to fraction form
   12,715.22/17,545.38 = 7,049.92/x
3. Step 3: Cross multiply
   12,715.22x = 17,545.38 × 7,049.92
4. Step 4: Simplify right side
   12,715.22x = 123,693,525.37
5. Step 5: Solve for x
   x = 123,693,525.37/12,715.22
6. Step 6: Final answer
   x = 9,727.99