Finding the Fourth Proportional to 12,019.88, 18,027.59 and 3,253.65

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019.88 : 18,027.59 = 3,253.65 : x
2. Step 2: Convert to fraction form
   12,019.88/18,027.59 = 3,253.65/x
3. Step 3: Cross multiply
   12,019.88x = 18,027.59 × 3,253.65
4. Step 4: Simplify right side
   12,019.88x = 58,655,451.94
5. Step 5: Solve for x
   x = 58,655,451.94/12,019.88
6. Step 6: Final answer
   x = 4,879.87