Finding the Fourth Proportional to 105,732, 158,598 and 31,860

Step by Step Solution

1. Step 1: Write the proportion equation
   105,732 : 158,598 = 31,860 : x
2. Step 2: Convert to fraction form
   105,732/158,598 = 31,860/x
3. Step 3: Cross multiply
   105,732x = 158,598 × 31,860
4. Step 4: Simplify right side
   105,732x = 5,052,932,280
5. Step 5: Solve for x
   x = 5,052,932,280/105,732
6. Step 6: Final answer
   x = 47,790