Finding the Fourth Proportional to 12,476.65, 17,217.52 and 7,171.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,476.65 : 17,217.52 = 7,171.33 : x
2. Step 2: Convert to fraction form
   12,476.65/17,217.52 = 7,171.33/x
3. Step 3: Cross multiply
   12,476.65x = 17,217.52 × 7,171.33
4. Step 4: Simplify right side
   12,476.65x = 123,472,517.70
5. Step 5: Solve for x
   x = 123,472,517.70/12,476.65
6. Step 6: Final answer
   x = 9,896.29