Finding the Fourth Proportional to 3,194.29, 4,787.31 and 3,112.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,194.29 : 4,787.31 = 3,112.27 : x
2. Step 2: Convert to fraction form
   3,194.29/4,787.31 = 3,112.27/x
3. Step 3: Cross multiply
   3,194.29x = 4,787.31 × 3,112.27
4. Step 4: Simplify right side
   3,194.29x = 14,899,401.29
5. Step 5: Solve for x
   x = 14,899,401.29/3,194.29
6. Step 6: Final answer
   x = 4,664.39