Finding the Fourth Proportional to 6,436.29, 8,882.83 and 3,919.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,436.29 : 8,882.83 = 3,919.88 : x
2. Step 2: Convert to fraction form
   6,436.29/8,882.83 = 3,919.88/x
3. Step 3: Cross multiply
   6,436.29x = 8,882.83 × 3,919.88
4. Step 4: Simplify right side
   6,436.29x = 34,819,563.65
5. Step 5: Solve for x
   x = 34,819,563.65/6,436.29
6. Step 6: Final answer
   x = 5,409.88