Finding the Fourth Proportional to 6,421.82, 8,861.98 and 3,589.24

Step by Step Solution

1. Step 1: Write the proportion equation
   6,421.82 : 8,861.98 = 3,589.24 : x
2. Step 2: Convert to fraction form
   6,421.82/8,861.98 = 3,589.24/x
3. Step 3: Cross multiply
   6,421.82x = 8,861.98 × 3,589.24
4. Step 4: Simplify right side
   6,421.82x = 31,807,773.10
5. Step 5: Solve for x
   x = 31,807,773.10/6,421.82
6. Step 6: Final answer
   x = 4,953.08