Finding the Fourth Proportional to 8,919.48, 12,308.52 and 4,940.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,919.48 : 12,308.52 = 4,940.76 : x
2. Step 2: Convert to fraction form
   8,919.48/12,308.52 = 4,940.76/x
3. Step 3: Cross multiply
   8,919.48x = 12,308.52 × 4,940.76
4. Step 4: Simplify right side
   8,919.48x = 60,813,443.28
5. Step 5: Solve for x
   x = 60,813,443.28/8,919.48
6. Step 6: Final answer
   x = 6,818.05