Finding the Fourth Proportional to 6,399.19, 8,829.33 and 3,604.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,399.19 : 8,829.33 = 3,604.69 : x
2. Step 2: Convert to fraction form
   6,399.19/8,829.33 = 3,604.69/x
3. Step 3: Cross multiply
   6,399.19x = 8,829.33 × 3,604.69
4. Step 4: Simplify right side
   6,399.19x = 31,826,997.56
5. Step 5: Solve for x
   x = 31,826,997.56/6,399.19
6. Step 6: Final answer
   x = 4,973.60