Finding the Fourth Proportional to 8,123.50, 12,185.73 and 2,280.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.50 : 12,185.73 = 2,280.58 : x
2. Step 2: Convert to fraction form
   8,123.50/12,185.73 = 2,280.58/x
3. Step 3: Cross multiply
   8,123.50x = 12,185.73 × 2,280.58
4. Step 4: Simplify right side
   8,123.50x = 27,790,532.12
5. Step 5: Solve for x
   x = 27,790,532.12/8,123.50
6. Step 6: Final answer
   x = 3,421.00