Finding the Fourth Proportional to 105,516, 158,274 and 31,644

Step by Step Solution

1. Step 1: Write the proportion equation
   105,516 : 158,274 = 31,644 : x
2. Step 2: Convert to fraction form
   105,516/158,274 = 31,644/x
3. Step 3: Cross multiply
   105,516x = 158,274 × 31,644
4. Step 4: Simplify right side
   105,516x = 5,008,422,456
5. Step 5: Solve for x
   x = 5,008,422,456/105,516
6. Step 6: Final answer
   x = 47,466