Finding the Fourth Proportional to 8,123.12, 12,185.16 and 2,576.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.12 : 12,185.16 = 2,576.36 : x
2. Step 2: Convert to fraction form
   8,123.12/12,185.16 = 2,576.36/x
3. Step 3: Cross multiply
   8,123.12x = 12,185.16 × 2,576.36
4. Step 4: Simplify right side
   8,123.12x = 31,393,358.82
5. Step 5: Solve for x
   x = 31,393,358.82/8,123.12
6. Step 6: Final answer
   x = 3,864.69