Finding the Fourth Proportional to 8,924.38, 12,315.50 and 4,945.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,924.38 : 12,315.50 = 4,945.48 : x
2. Step 2: Convert to fraction form
   8,924.38/12,315.50 = 4,945.48/x
3. Step 3: Cross multiply
   8,924.38x = 12,315.50 × 4,945.48
4. Step 4: Simplify right side
   8,924.38x = 60,906,058.94
5. Step 5: Solve for x
   x = 60,906,058.94/8,924.38
6. Step 6: Final answer
   x = 6,824.68