Finding the Fourth Proportional to 12,909.24, 17,815.59 and 7,244.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,909.24 : 17,815.59 = 7,244.33 : x
2. Step 2: Convert to fraction form
   12,909.24/17,815.59 = 7,244.33/x
3. Step 3: Cross multiply
   12,909.24x = 17,815.59 × 7,244.33
4. Step 4: Simplify right side
   12,909.24x = 129,061,924.03
5. Step 5: Solve for x
   x = 129,061,924.03/12,909.24
6. Step 6: Final answer
   x = 9,997.64