Finding the Fourth Proportional to 9,665.09, 13,344.25 and 7,422.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.09 : 13,344.25 = 7,422.96 : x
2. Step 2: Convert to fraction form
   9,665.09/13,344.25 = 7,422.96/x
3. Step 3: Cross multiply
   9,665.09x = 13,344.25 × 7,422.96
4. Step 4: Simplify right side
   9,665.09x = 99,053,730.14
5. Step 5: Solve for x
   x = 99,053,730.14/9,665.09
6. Step 6: Final answer
   x = 10,248.61