Finding the Fourth Proportional to 6,421.03, 9,634.60 and 4,449.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,421.03 : 9,634.60 = 4,449.69 : x
2. Step 2: Convert to fraction form
   6,421.03/9,634.60 = 4,449.69/x
3. Step 3: Cross multiply
   6,421.03x = 9,634.60 × 4,449.69
4. Step 4: Simplify right side
   6,421.03x = 42,870,983.27
5. Step 5: Solve for x
   x = 42,870,983.27/6,421.03
6. Step 6: Final answer
   x = 6,676.65