Finding the Fourth Proportional to 6,422.05, 8,861.34 and 3,589.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,422.05 : 8,861.34 = 3,589.30 : x
2. Step 2: Convert to fraction form
   6,422.05/8,861.34 = 3,589.30/x
3. Step 3: Cross multiply
   6,422.05x = 8,861.34 × 3,589.30
4. Step 4: Simplify right side
   6,422.05x = 31,806,007.66
5. Step 5: Solve for x
   x = 31,806,007.66/6,422.05
6. Step 6: Final answer
   x = 4,952.63