Finding the Fourth Proportional to 8,105.60, 12,154.25 and 3,719.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,105.60 : 12,154.25 = 3,719.25 : x
2. Step 2: Convert to fraction form
   8,105.60/12,154.25 = 3,719.25/x
3. Step 3: Cross multiply
   8,105.60x = 12,154.25 × 3,719.25
4. Step 4: Simplify right side
   8,105.60x = 45,204,703.61
5. Step 5: Solve for x
   x = 45,204,703.61/8,105.60
6. Step 6: Final answer
   x = 5,576.97