Finding the Fourth Proportional to 12,018.26, 18,022.52 and 4,993.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,018.26 : 18,022.52 = 4,993.50 : x
2. Step 2: Convert to fraction form
   12,018.26/18,022.52 = 4,993.50/x
3. Step 3: Cross multiply
   12,018.26x = 18,022.52 × 4,993.50
4. Step 4: Simplify right side
   12,018.26x = 89,995,453.62
5. Step 5: Solve for x
   x = 89,995,453.62/12,018.26
6. Step 6: Final answer
   x = 7,488.23