Finding the Fourth Proportional to 12,244, 18,365.52 and 3,478.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,244 : 18,365.52 = 3,478.72 : x
2. Step 2: Convert to fraction form
   12,244/18,365.52 = 3,478.72/x
3. Step 3: Cross multiply
   12,244x = 18,365.52 × 3,478.72
4. Step 4: Simplify right side
   12,244x = 63,888,501.73
5. Step 5: Solve for x
   x = 63,888,501.73/12,244
6. Step 6: Final answer
   x = 5,217.94