Finding the Fourth Proportional to 8,100.70, 12,149.55 and 2,256.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,100.70 : 12,149.55 = 2,256.10 : x
2. Step 2: Convert to fraction form
   8,100.70/12,149.55 = 2,256.10/x
3. Step 3: Cross multiply
   8,100.70x = 12,149.55 × 2,256.10
4. Step 4: Simplify right side
   8,100.70x = 27,410,599.76
5. Step 5: Solve for x
   x = 27,410,599.76/8,100.70
6. Step 6: Final answer
   x = 3,383.73