Finding the Fourth Proportional to 6,648.14, 9,978.37 and 3,363.55

Step by Step Solution

1. Step 1: Write the proportion equation
   6,648.14 : 9,978.37 = 3,363.55 : x
2. Step 2: Convert to fraction form
   6,648.14/9,978.37 = 3,363.55/x
3. Step 3: Cross multiply
   6,648.14x = 9,978.37 × 3,363.55
4. Step 4: Simplify right side
   6,648.14x = 33,562,713.06
5. Step 5: Solve for x
   x = 33,562,713.06/6,648.14
6. Step 6: Final answer
   x = 5,048.43