Finding the Fourth Proportional to 12,243.65, 18,363.62 and 3,922.79

Step by Step Solution

1. Step 1: Write the proportion equation
   12,243.65 : 18,363.62 = 3,922.79 : x
2. Step 2: Convert to fraction form
   12,243.65/18,363.62 = 3,922.79/x
3. Step 3: Cross multiply
   12,243.65x = 18,363.62 × 3,922.79
4. Step 4: Simplify right side
   12,243.65x = 72,036,542.89
5. Step 5: Solve for x
   x = 72,036,542.89/12,243.65
6. Step 6: Final answer
   x = 5,883.59