Finding the Fourth Proportional to 12,715.65, 17,545.92 and 7,050.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,715.65 : 17,545.92 = 7,050.12 : x
2. Step 2: Convert to fraction form
   12,715.65/17,545.92 = 7,050.12/x
3. Step 3: Cross multiply
   12,715.65x = 17,545.92 × 7,050.12
4. Step 4: Simplify right side
   12,715.65x = 123,700,841.51
5. Step 5: Solve for x
   x = 123,700,841.51/12,715.65
6. Step 6: Final answer
   x = 9,728.24