Finding the Fourth Proportional to 6,401.69, 8,834.48 and 3,607.19

Step by Step Solution

1. Step 1: Write the proportion equation
   6,401.69 : 8,834.48 = 3,607.19 : x
2. Step 2: Convert to fraction form
   6,401.69/8,834.48 = 3,607.19/x
3. Step 3: Cross multiply
   6,401.69x = 8,834.48 × 3,607.19
4. Step 4: Simplify right side
   6,401.69x = 31,867,647.91
5. Step 5: Solve for x
   x = 31,867,647.91/6,401.69
6. Step 6: Final answer
   x = 4,978.01