Finding the Fourth Proportional to 6,414.28, 8,856.72 and 4,919.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,414.28 : 8,856.72 = 4,919.83 : x
2. Step 2: Convert to fraction form
   6,414.28/8,856.72 = 4,919.83/x
3. Step 3: Cross multiply
   6,414.28x = 8,856.72 × 4,919.83
4. Step 4: Simplify right side
   6,414.28x = 43,573,556.76
5. Step 5: Solve for x
   x = 43,573,556.76/6,414.28
6. Step 6: Final answer
   x = 6,793.21