Finding the Fourth Proportional to 12,229.48, 18,339.56 and 5,205.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,229.48 : 18,339.56 = 5,205.06 : x
2. Step 2: Convert to fraction form
   12,229.48/18,339.56 = 5,205.06/x
3. Step 3: Cross multiply
   12,229.48x = 18,339.56 × 5,205.06
4. Step 4: Simplify right side
   12,229.48x = 95,458,392.45
5. Step 5: Solve for x
   x = 95,458,392.45/12,229.48
6. Step 6: Final answer
   x = 7,805.60