Finding the Fourth Proportional to 12,799.69, 17,664.17 and 7,496.21

Step by Step Solution

1. Step 1: Write the proportion equation
   12,799.69 : 17,664.17 = 7,496.21 : x
2. Step 2: Convert to fraction form
   12,799.69/17,664.17 = 7,496.21/x
3. Step 3: Cross multiply
   12,799.69x = 17,664.17 × 7,496.21
4. Step 4: Simplify right side
   12,799.69x = 132,414,327.80
5. Step 5: Solve for x
   x = 132,414,327.80/12,799.69
6. Step 6: Final answer
   x = 10,345.12