Finding the Fourth Proportional to 12,243.29, 18,371.86 and 5,222.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,243.29 : 18,371.86 = 5,222.64 : x
2. Step 2: Convert to fraction form
   12,243.29/18,371.86 = 5,222.64/x
3. Step 3: Cross multiply
   12,243.29x = 18,371.86 × 5,222.64
4. Step 4: Simplify right side
   12,243.29x = 95,949,610.91
5. Step 5: Solve for x
   x = 95,949,610.91/12,243.29
6. Step 6: Final answer
   x = 7,836.91