Finding the Fourth Proportional to 6,422.15, 8,861.72 and 3,589.41

Step by Step Solution

1. Step 1: Write the proportion equation
   6,422.15 : 8,861.72 = 3,589.41 : x
2. Step 2: Convert to fraction form
   6,422.15/8,861.72 = 3,589.41/x
3. Step 3: Cross multiply
   6,422.15x = 8,861.72 × 3,589.41
4. Step 4: Simplify right side
   6,422.15x = 31,808,366.72
5. Step 5: Solve for x
   x = 31,808,366.72/6,422.15
6. Step 6: Final answer
   x = 4,952.92