Finding the Fourth Proportional to 12,222.78, 16,867.50 and 6,633.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,222.78 : 16,867.50 = 6,633.78 : x
2. Step 2: Convert to fraction form
   12,222.78/16,867.50 = 6,633.78/x
3. Step 3: Cross multiply
   12,222.78x = 16,867.50 × 6,633.78
4. Step 4: Simplify right side
   12,222.78x = 111,895,284.15
5. Step 5: Solve for x
   x = 111,895,284.15/12,222.78
6. Step 6: Final answer
   x = 9,154.65