Finding the Fourth Proportional to 12,057.10, 18,082.41 and 8,185.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,057.10 : 18,082.41 = 8,185.34 : x
2. Step 2: Convert to fraction form
   12,057.10/18,082.41 = 8,185.34/x
3. Step 3: Cross multiply
   12,057.10x = 18,082.41 × 8,185.34
4. Step 4: Simplify right side
   12,057.10x = 148,010,673.87
5. Step 5: Solve for x
   x = 148,010,673.87/12,057.10
6. Step 6: Final answer
   x = 12,275.81