Finding the Fourth Proportional to 12,218.42, 18,327.71 and 3,453.41

Step by Step Solution

1. Step 1: Write the proportion equation
   12,218.42 : 18,327.71 = 3,453.41 : x
2. Step 2: Convert to fraction form
   12,218.42/18,327.71 = 3,453.41/x
3. Step 3: Cross multiply
   12,218.42x = 18,327.71 × 3,453.41
4. Step 4: Simplify right side
   12,218.42x = 63,293,079.72
5. Step 5: Solve for x
   x = 63,293,079.72/12,218.42
6. Step 6: Final answer
   x = 5,180.14