Finding the Fourth Proportional to 9,647.67, 13,314.50 and 5,399.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,647.67 : 13,314.50 = 5,399.16 : x
2. Step 2: Convert to fraction form
   9,647.67/13,314.50 = 5,399.16/x
3. Step 3: Cross multiply
   9,647.67x = 13,314.50 × 5,399.16
4. Step 4: Simplify right side
   9,647.67x = 71,887,089.28
5. Step 5: Solve for x
   x = 71,887,089.28/9,647.67
6. Step 6: Final answer
   x = 7,451.24