Finding the Fourth Proportional to 8,180.12, 12,275.68 and 8,150.08

Step by Step Solution

1. Step 1: Write the proportion equation
   8,180.12 : 12,275.68 = 8,150.08 : x
2. Step 2: Convert to fraction form
   8,180.12/12,275.68 = 8,150.08/x
3. Step 3: Cross multiply
   8,180.12x = 12,275.68 × 8,150.08
4. Step 4: Simplify right side
   8,180.12x = 100,047,774.05
5. Step 5: Solve for x
   x = 100,047,774.05/8,180.12
6. Step 6: Final answer
   x = 12,230.60