Finding the Fourth Proportional to 12,081.96, 18,116.46 and 5,506.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,081.96 : 18,116.46 = 5,506.38 : x
2. Step 2: Convert to fraction form
   12,081.96/18,116.46 = 5,506.38/x
3. Step 3: Cross multiply
   12,081.96x = 18,116.46 × 5,506.38
4. Step 4: Simplify right side
   12,081.96x = 99,756,113.01
5. Step 5: Solve for x
   x = 99,756,113.01/12,081.96
6. Step 6: Final answer
   x = 8,256.62