Finding the Fourth Proportional to 8,760.76, 12,085.36 and 5,928.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,760.76 : 12,085.36 = 5,928.28 : x
2. Step 2: Convert to fraction form
   8,760.76/12,085.36 = 5,928.28/x
3. Step 3: Cross multiply
   8,760.76x = 12,085.36 × 5,928.28
4. Step 4: Simplify right side
   8,760.76x = 71,645,397.98
5. Step 5: Solve for x
   x = 71,645,397.98/8,760.76
6. Step 6: Final answer
   x = 8,177.99