Finding the Fourth Proportional to 9,662.24, 14,478.78 and 7,185.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,662.24 : 14,478.78 = 7,185.44 : x
2. Step 2: Convert to fraction form
   9,662.24/14,478.78 = 7,185.44/x
3. Step 3: Cross multiply
   9,662.24x = 14,478.78 × 7,185.44
4. Step 4: Simplify right side
   9,662.24x = 104,036,404.96
5. Step 5: Solve for x
   x = 104,036,404.96/9,662.24
6. Step 6: Final answer
   x = 10,767.32