Finding the Fourth Proportional to 12,227.20, 18,338.76 and 3,459.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,227.20 : 18,338.76 = 3,459.94 : x
2. Step 2: Convert to fraction form
   12,227.20/18,338.76 = 3,459.94/x
3. Step 3: Cross multiply
   12,227.20x = 18,338.76 × 3,459.94
4. Step 4: Simplify right side
   12,227.20x = 63,451,009.27
5. Step 5: Solve for x
   x = 63,451,009.27/12,227.20
6. Step 6: Final answer
   x = 5,189.33