Finding the Fourth Proportional to 8,151.82, 12,234.72 and 8,090.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,151.82 : 12,234.72 = 8,090.46 : x
2. Step 2: Convert to fraction form
   8,151.82/12,234.72 = 8,090.46/x
3. Step 3: Cross multiply
   8,151.82x = 12,234.72 × 8,090.46
4. Step 4: Simplify right side
   8,151.82x = 98,984,472.32
5. Step 5: Solve for x
   x = 98,984,472.32/8,151.82
6. Step 6: Final answer
   x = 12,142.62