Finding the Fourth Proportional to 6,399.16, 8,829.96 and 3,604.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,399.16 : 8,829.96 = 3,604.72 : x
2. Step 2: Convert to fraction form
   6,399.16/8,829.96 = 3,604.72/x
3. Step 3: Cross multiply
   6,399.16x = 8,829.96 × 3,604.72
4. Step 4: Simplify right side
   6,399.16x = 31,829,533.41
5. Step 5: Solve for x
   x = 31,829,533.41/6,399.16
6. Step 6: Final answer
   x = 4,974.02