Finding the Fourth Proportional to 8,123.27, 12,185.34 and 2,280.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.27 : 12,185.34 = 2,280.34 : x
2. Step 2: Convert to fraction form
   8,123.27/12,185.34 = 2,280.34/x
3. Step 3: Cross multiply
   8,123.27x = 12,185.34 × 2,280.34
4. Step 4: Simplify right side
   8,123.27x = 27,786,718.22
5. Step 5: Solve for x
   x = 27,786,718.22/8,123.27
6. Step 6: Final answer
   x = 3,420.63