Finding the Fourth Proportional to 9,665.47, 13,344.74 and 7,423.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,665.47 : 13,344.74 = 7,423.32 : x
2. Step 2: Convert to fraction form
   9,665.47/13,344.74 = 7,423.32/x
3. Step 3: Cross multiply
   9,665.47x = 13,344.74 × 7,423.32
4. Step 4: Simplify right side
   9,665.47x = 99,062,275.34
5. Step 5: Solve for x
   x = 99,062,275.34/9,665.47
6. Step 6: Final answer
   x = 10,249.09