Finding the Fourth Proportional to 105,816, 158,724 and 31,944

Step by Step Solution

1. Step 1: Write the proportion equation
   105,816 : 158,724 = 31,944 : x
2. Step 2: Convert to fraction form
   105,816/158,724 = 31,944/x
3. Step 3: Cross multiply
   105,816x = 158,724 × 31,944
4. Step 4: Simplify right side
   105,816x = 5,070,279,456
5. Step 5: Solve for x
   x = 5,070,279,456/105,816
6. Step 6: Final answer
   x = 47,916