Finding the Fourth Proportional to 8,100.60, 12,149.82 and 2,256.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,100.60 : 12,149.82 = 2,256.72 : x
2. Step 2: Convert to fraction form
   8,100.60/12,149.82 = 2,256.72/x
3. Step 3: Cross multiply
   8,100.60x = 12,149.82 × 2,256.72
4. Step 4: Simplify right side
   8,100.60x = 27,418,741.79
5. Step 5: Solve for x
   x = 27,418,741.79/8,100.60
6. Step 6: Final answer
   x = 3,384.78