Finding the Fourth Proportional to 6,321.50, 8,723.82 and 3,488.90

Step by Step Solution

1. Step 1: Write the proportion equation
   6,321.50 : 8,723.82 = 3,488.90 : x
2. Step 2: Convert to fraction form
   6,321.50/8,723.82 = 3,488.90/x
3. Step 3: Cross multiply
   6,321.50x = 8,723.82 × 3,488.90
4. Step 4: Simplify right side
   6,321.50x = 30,436,535.60
5. Step 5: Solve for x
   x = 30,436,535.60/6,321.50
6. Step 6: Final answer
   x = 4,814.76