Finding the Fourth Proportional to 12,715.23, 17,546.31 and 7,049.65

Step by Step Solution

1. Step 1: Write the proportion equation
   12,715.23 : 17,546.31 = 7,049.65 : x
2. Step 2: Convert to fraction form
   12,715.23/17,546.31 = 7,049.65/x
3. Step 3: Cross multiply
   12,715.23x = 17,546.31 × 7,049.65
4. Step 4: Simplify right side
   12,715.23x = 123,695,280.74
5. Step 5: Solve for x
   x = 123,695,280.74/12,715.23
6. Step 6: Final answer
   x = 9,728.12