Finding the Fourth Proportional to 6,896.67, 10,339.61 and 3,609.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,896.67 : 10,339.61 = 3,609.15 : x
2. Step 2: Convert to fraction form
   6,896.67/10,339.61 = 3,609.15/x
3. Step 3: Cross multiply
   6,896.67x = 10,339.61 × 3,609.15
4. Step 4: Simplify right side
   6,896.67x = 37,317,185.39
5. Step 5: Solve for x
   x = 37,317,185.39/6,896.67
6. Step 6: Final answer
   x = 5,410.90