Finding the Fourth Proportional to 12,222.72, 18,340.80 and 6,384.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,222.72 : 18,340.80 = 6,384.48 : x
2. Step 2: Convert to fraction form
   12,222.72/18,340.80 = 6,384.48/x
3. Step 3: Cross multiply
   12,222.72x = 18,340.80 × 6,384.48
4. Step 4: Simplify right side
   12,222.72x = 117,096,470.78
5. Step 5: Solve for x
   x = 117,096,470.78/12,222.72
6. Step 6: Final answer
   x = 9,580.23