Finding the Fourth Proportional to 8,614.88, 12,915.96 and 2,768.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,614.88 : 12,915.96 = 2,768.16 : x
2. Step 2: Convert to fraction form
   8,614.88/12,915.96 = 2,768.16/x
3. Step 3: Cross multiply
   8,614.88x = 12,915.96 × 2,768.16
4. Step 4: Simplify right side
   8,614.88x = 35,753,443.83
5. Step 5: Solve for x
   x = 35,753,443.83/8,614.88
6. Step 6: Final answer
   x = 4,150.20