Finding the Fourth Proportional to 6,404.31, 8,838 and 3,571.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,404.31 : 8,838 = 3,571.88 : x
2. Step 2: Convert to fraction form
   6,404.31/8,838 = 3,571.88/x
3. Step 3: Cross multiply
   6,404.31x = 8,838 × 3,571.88
4. Step 4: Simplify right side
   6,404.31x = 31,568,231.25
5. Step 5: Solve for x
   x = 31,568,231.25/6,404.31
6. Step 6: Final answer
   x = 4,929.22