Finding the Fourth Proportional to 8,131.89, 12,196.44 and 2,287.14

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.89 : 12,196.44 = 2,287.14 : x
2. Step 2: Convert to fraction form
   8,131.89/12,196.44 = 2,287.14/x
3. Step 3: Cross multiply
   8,131.89x = 12,196.44 × 2,287.14
4. Step 4: Simplify right side
   8,131.89x = 27,894,965.78
5. Step 5: Solve for x
   x = 27,894,965.78/8,131.89
6. Step 6: Final answer
   x = 3,430.32