Finding the Fourth Proportional to 8,818.08, 12,168.56 and 4,839.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,818.08 : 12,168.56 = 4,839.20 : x
2. Step 2: Convert to fraction form
   8,818.08/12,168.56 = 4,839.20/x
3. Step 3: Cross multiply
   8,818.08x = 12,168.56 × 4,839.20
4. Step 4: Simplify right side
   8,818.08x = 58,886,095.55
5. Step 5: Solve for x
   x = 58,886,095.55/8,818.08
6. Step 6: Final answer
   x = 6,677.88