Finding the Fourth Proportional to 6,664.15, 9,196.42 and 3,679.91

Step by Step Solution

1. Step 1: Write the proportion equation
   6,664.15 : 9,196.42 = 3,679.91 : x
2. Step 2: Convert to fraction form
   6,664.15/9,196.42 = 3,679.91/x
3. Step 3: Cross multiply
   6,664.15x = 9,196.42 × 3,679.91
4. Step 4: Simplify right side
   6,664.15x = 33,841,933.54
5. Step 5: Solve for x
   x = 33,841,933.54/6,664.15
6. Step 6: Final answer
   x = 5,078.21