Finding the Fourth Proportional to 12,028.37, 18,040.91 and 3,708.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,028.37 : 18,040.91 = 3,708.18 : x
2. Step 2: Convert to fraction form
   12,028.37/18,040.91 = 3,708.18/x
3. Step 3: Cross multiply
   12,028.37x = 18,040.91 × 3,708.18
4. Step 4: Simplify right side
   12,028.37x = 66,898,923.10
5. Step 5: Solve for x
   x = 66,898,923.10/12,028.37
6. Step 6: Final answer
   x = 5,561.76