Finding the Fourth Proportional to 8,196.67, 12,288.61 and 3,813.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,196.67 : 12,288.61 = 3,813.55 : x
2. Step 2: Convert to fraction form
   8,196.67/12,288.61 = 3,813.55/x
3. Step 3: Cross multiply
   8,196.67x = 12,288.61 × 3,813.55
4. Step 4: Simplify right side
   8,196.67x = 46,863,228.67
5. Step 5: Solve for x
   x = 46,863,228.67/8,196.67
6. Step 6: Final answer
   x = 5,717.35