Finding the Fourth Proportional to 11,268.72, 15,565.59 and 8,648.46

Step by Step Solution

1. Step 1: Write the proportion equation
   11,268.72 : 15,565.59 = 8,648.46 : x
2. Step 2: Convert to fraction form
   11,268.72/15,565.59 = 8,648.46/x
3. Step 3: Cross multiply
   11,268.72x = 15,565.59 × 8,648.46
4. Step 4: Simplify right side
   11,268.72x = 134,618,382.49
5. Step 5: Solve for x
   x = 134,618,382.49/11,268.72
6. Step 6: Final answer
   x = 11,946.20