Finding the Fourth Proportional to 12,081.87, 18,122.58 and 3,316.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,081.87 : 18,122.58 = 3,316.46 : x
2. Step 2: Convert to fraction form
   12,081.87/18,122.58 = 3,316.46/x
3. Step 3: Cross multiply
   12,081.87x = 18,122.58 × 3,316.46
4. Step 4: Simplify right side
   12,081.87x = 60,102,721.05
5. Step 5: Solve for x
   x = 60,102,721.05/12,081.87
6. Step 6: Final answer
   x = 4,974.62