Finding the Fourth Proportional to 12,087.22, 18,131.46 and 3,321.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,087.22 : 18,131.46 = 3,321.94 : x
2. Step 2: Convert to fraction form
   12,087.22/18,131.46 = 3,321.94/x
3. Step 3: Cross multiply
   12,087.22x = 18,131.46 × 3,321.94
4. Step 4: Simplify right side
   12,087.22x = 60,231,622.23
5. Step 5: Solve for x
   x = 60,231,622.23/12,087.22
6. Step 6: Final answer
   x = 4,983.08