Finding the Fourth Proportional to 6,216.01, 8,579.27 and 3,978.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,216.01 : 8,579.27 = 3,978.83 : x
2. Step 2: Convert to fraction form
   6,216.01/8,579.27 = 3,978.83/x
3. Step 3: Cross multiply
   6,216.01x = 8,579.27 × 3,978.83
4. Step 4: Simplify right side
   6,216.01x = 34,135,456.85
5. Step 5: Solve for x
   x = 34,135,456.85/6,216.01
6. Step 6: Final answer
   x = 5,491.54