Finding the Fourth Proportional to 8,799.76, 12,144.72 and 5,444.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,799.76 : 12,144.72 = 5,444.80 : x
2. Step 2: Convert to fraction form
   8,799.76/12,144.72 = 5,444.80/x
3. Step 3: Cross multiply
   8,799.76x = 12,144.72 × 5,444.80
4. Step 4: Simplify right side
   8,799.76x = 66,125,571.46
5. Step 5: Solve for x
   x = 66,125,571.46/8,799.76
6. Step 6: Final answer
   x = 7,514.47