Finding the Fourth Proportional to 12,671.37, 19,007.33 and 3,906.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,671.37 : 19,007.33 = 3,906.27 : x
2. Step 2: Convert to fraction form
   12,671.37/19,007.33 = 3,906.27/x
3. Step 3: Cross multiply
   12,671.37x = 19,007.33 × 3,906.27
4. Step 4: Simplify right side
   12,671.37x = 74,247,743.43
5. Step 5: Solve for x
   x = 74,247,743.43/12,671.37
6. Step 6: Final answer
   x = 5,859.49