Finding the Fourth Proportional to 12,097.40, 18,144.72 and 4,198.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,097.40 : 18,144.72 = 4,198.46 : x
2. Step 2: Convert to fraction form
   12,097.40/18,144.72 = 4,198.46/x
3. Step 3: Cross multiply
   12,097.40x = 18,144.72 × 4,198.46
4. Step 4: Simplify right side
   12,097.40x = 76,179,790.41
5. Step 5: Solve for x
   x = 76,179,790.41/12,097.40
6. Step 6: Final answer
   x = 6,297.21