Finding the Fourth Proportional to 8,123.18, 12,186.24 and 2,500.74

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.18 : 12,186.24 = 2,500.74 : x
2. Step 2: Convert to fraction form
   8,123.18/12,186.24 = 2,500.74/x
3. Step 3: Cross multiply
   8,123.18x = 12,186.24 × 2,500.74
4. Step 4: Simplify right side
   8,123.18x = 30,474,617.82
5. Step 5: Solve for x
   x = 30,474,617.82/8,123.18
6. Step 6: Final answer
   x = 3,751.56