Finding the Fourth Proportional to 6,404.40, 8,838.23 and 3,571.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,404.40 : 8,838.23 = 3,571.83 : x
2. Step 2: Convert to fraction form
   6,404.40/8,838.23 = 3,571.83/x
3. Step 3: Cross multiply
   6,404.40x = 8,838.23 × 3,571.83
4. Step 4: Simplify right side
   6,404.40x = 31,568,637.20
5. Step 5: Solve for x
   x = 31,568,637.20/6,404.40
6. Step 6: Final answer
   x = 4,929.21