Finding the Fourth Proportional to 12,198.24, 18,294.72 and 4,402.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,198.24 : 18,294.72 = 4,402.72 : x
2. Step 2: Convert to fraction form
   12,198.24/18,294.72 = 4,402.72/x
3. Step 3: Cross multiply
   12,198.24x = 18,294.72 × 4,402.72
4. Step 4: Simplify right side
   12,198.24x = 80,546,529.64
5. Step 5: Solve for x
   x = 80,546,529.64/12,198.24
6. Step 6: Final answer
   x = 6,603.13