Finding the Fourth Proportional to 6,447.77, 9,665.37 and 3,331.29

Step by Step Solution

1. Step 1: Write the proportion equation
   6,447.77 : 9,665.37 = 3,331.29 : x
2. Step 2: Convert to fraction form
   6,447.77/9,665.37 = 3,331.29/x
3. Step 3: Cross multiply
   6,447.77x = 9,665.37 × 3,331.29
4. Step 4: Simplify right side
   6,447.77x = 32,198,150.43
5. Step 5: Solve for x
   x = 32,198,150.43/6,447.77
6. Step 6: Final answer
   x = 4,993.69