Finding the Fourth Proportional to 8,227.50, 12,339.89 and 2,961.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,227.50 : 12,339.89 = 2,961.45 : x
2. Step 2: Convert to fraction form
   8,227.50/12,339.89 = 2,961.45/x
3. Step 3: Cross multiply
   8,227.50x = 12,339.89 × 2,961.45
4. Step 4: Simplify right side
   8,227.50x = 36,543,952.43
5. Step 5: Solve for x
   x = 36,543,952.43/8,227.50
6. Step 6: Final answer
   x = 4,441.68