Finding the Fourth Proportional to 8,131.68, 12,196.72 and 2,288.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.68 : 12,196.72 = 2,288.16 : x
2. Step 2: Convert to fraction form
   8,131.68/12,196.72 = 2,288.16/x
3. Step 3: Cross multiply
   8,131.68x = 12,196.72 × 2,288.16
4. Step 4: Simplify right side
   8,131.68x = 27,908,046.84
5. Step 5: Solve for x
   x = 27,908,046.84/8,131.68
6. Step 6: Final answer
   x = 3,432.01