Finding the Fourth Proportional to 12,796.65, 17,658.18 and 7,131.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,796.65 : 17,658.18 = 7,131.69 : x
2. Step 2: Convert to fraction form
   12,796.65/17,658.18 = 7,131.69/x
3. Step 3: Cross multiply
   12,796.65x = 17,658.18 × 7,131.69
4. Step 4: Simplify right side
   12,796.65x = 125,932,665.72
5. Step 5: Solve for x
   x = 125,932,665.72/12,796.65
6. Step 6: Final answer
   x = 9,841.07