Finding the Fourth Proportional to 6,663.71, 9,196.11 and 3,639.02

Step by Step Solution

1. Step 1: Write the proportion equation
   6,663.71 : 9,196.11 = 3,639.02 : x
2. Step 2: Convert to fraction form
   6,663.71/9,196.11 = 3,639.02/x
3. Step 3: Cross multiply
   6,663.71x = 9,196.11 × 3,639.02
4. Step 4: Simplify right side
   6,663.71x = 33,464,797.86
5. Step 5: Solve for x
   x = 33,464,797.86/6,663.71
6. Step 6: Final answer
   x = 5,021.95