Finding the Fourth Proportional to 8,196.81, 12,295.22 and 3,513.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,196.81 : 12,295.22 = 3,513.78 : x
2. Step 2: Convert to fraction form
   8,196.81/12,295.22 = 3,513.78/x
3. Step 3: Cross multiply
   8,196.81x = 12,295.22 × 3,513.78
4. Step 4: Simplify right side
   8,196.81x = 43,202,619.09
5. Step 5: Solve for x
   x = 43,202,619.09/8,196.81
6. Step 6: Final answer
   x = 5,270.67