Finding the Fourth Proportional to 12,297.46, 18,429.98 and 4,498.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,297.46 : 18,429.98 = 4,498.78 : x
2. Step 2: Convert to fraction form
   12,297.46/18,429.98 = 4,498.78/x
3. Step 3: Cross multiply
   12,297.46x = 18,429.98 × 4,498.78
4. Step 4: Simplify right side
   12,297.46x = 82,912,425.42
5. Step 5: Solve for x
   x = 82,912,425.42/12,297.46
6. Step 6: Final answer
   x = 6,742.24