Finding the Fourth Proportional to 9,046.20, 12,480.24 and 5,268.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,046.20 : 12,480.24 = 5,268.72 : x
2. Step 2: Convert to fraction form
   9,046.20/12,480.24 = 5,268.72/x
3. Step 3: Cross multiply
   9,046.20x = 12,480.24 × 5,268.72
4. Step 4: Simplify right side
   9,046.20x = 65,754,890.09
5. Step 5: Solve for x
   x = 65,754,890.09/9,046.20
6. Step 6: Final answer
   x = 7,268.79