Finding the Fourth Proportional to 6,488.69, 9,729.96 and 3,365.57

Step by Step Solution

1. Step 1: Write the proportion equation
   6,488.69 : 9,729.96 = 3,365.57 : x
2. Step 2: Convert to fraction form
   6,488.69/9,729.96 = 3,365.57/x
3. Step 3: Cross multiply
   6,488.69x = 9,729.96 × 3,365.57
4. Step 4: Simplify right side
   6,488.69x = 32,746,885.80
5. Step 5: Solve for x
   x = 32,746,885.80/6,488.69
6. Step 6: Final answer
   x = 5,046.76