Finding the Fourth Proportional to 9,648.30, 13,314.24 and 5,399.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,648.30 : 13,314.24 = 5,399.76 : x
2. Step 2: Convert to fraction form
   9,648.30/13,314.24 = 5,399.76/x
3. Step 3: Cross multiply
   9,648.30x = 13,314.24 × 5,399.76
4. Step 4: Simplify right side
   9,648.30x = 71,893,700.58
5. Step 5: Solve for x
   x = 71,893,700.58/9,648.30
6. Step 6: Final answer
   x = 7,451.44