Finding the Fourth Proportional to 12,061.10, 18,110.85 and 8,182.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,061.10 : 18,110.85 = 8,182.70 : x
2. Step 2: Convert to fraction form
   12,061.10/18,110.85 = 8,182.70/x
3. Step 3: Cross multiply
   12,061.10x = 18,110.85 × 8,182.70
4. Step 4: Simplify right side
   12,061.10x = 148,195,652.30
5. Step 5: Solve for x
   x = 148,195,652.30/12,061.10
6. Step 6: Final answer
   x = 12,287.08