Finding the Fourth Proportional to 9,651.72, 13,320.02 and 5,403.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,651.72 : 13,320.02 = 5,403.16 : x
2. Step 2: Convert to fraction form
   9,651.72/13,320.02 = 5,403.16/x
3. Step 3: Cross multiply
   9,651.72x = 13,320.02 × 5,403.16
4. Step 4: Simplify right side
   9,651.72x = 71,970,105.65
5. Step 5: Solve for x
   x = 71,970,105.65/9,651.72
6. Step 6: Final answer
   x = 7,456.71