Finding the Fourth Proportional to 8,371.27, 12,557.27 and 3,174.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,371.27 : 12,557.27 = 3,174.31 : x
2. Step 2: Convert to fraction form
   8,371.27/12,557.27 = 3,174.31/x
3. Step 3: Cross multiply
   8,371.27x = 12,557.27 × 3,174.31
4. Step 4: Simplify right side
   8,371.27x = 39,860,667.73
5. Step 5: Solve for x
   x = 39,860,667.73/8,371.27
6. Step 6: Final answer
   x = 4,761.60