Finding the Fourth Proportional to 12,320.67, 18,480.96 and 3,086.67

Step by Step Solution

1. Step 1: Write the proportion equation
   12,320.67 : 18,480.96 = 3,086.67 : x
2. Step 2: Convert to fraction form
   12,320.67/18,480.96 = 3,086.67/x
3. Step 3: Cross multiply
   12,320.67x = 18,480.96 × 3,086.67
4. Step 4: Simplify right side
   12,320.67x = 57,044,624.80
5. Step 5: Solve for x
   x = 57,044,624.80/12,320.67
6. Step 6: Final answer
   x = 4,629.99