Finding the Fourth Proportional to 12,227.24, 18,336.89 and 3,905.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,227.24 : 18,336.89 = 3,905.30 : x
2. Step 2: Convert to fraction form
   12,227.24/18,336.89 = 3,905.30/x
3. Step 3: Cross multiply
   12,227.24x = 18,336.89 × 3,905.30
4. Step 4: Simplify right side
   12,227.24x = 71,610,945.31
5. Step 5: Solve for x
   x = 71,610,945.31/12,227.24
6. Step 6: Final answer
   x = 5,856.68