Finding the Fourth Proportional to 9,600.64, 13,248.72 and 5,408.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,600.64 : 13,248.72 = 5,408.92 : x
2. Step 2: Convert to fraction form
   9,600.64/13,248.72 = 5,408.92/x
3. Step 3: Cross multiply
   9,600.64x = 13,248.72 × 5,408.92
4. Step 4: Simplify right side
   9,600.64x = 71,661,266.58
5. Step 5: Solve for x
   x = 71,661,266.58/9,600.64
6. Step 6: Final answer
   x = 7,464.22