Finding the Fourth Proportional to 105,821.96, 158,731.98 and 31,949.96

Step by Step Solution

1. Step 1: Write the proportion equation
   105,821.96 : 158,731.98 = 31,949.96 : x
2. Step 2: Convert to fraction form
   105,821.96/158,731.98 = 31,949.96/x
3. Step 3: Cross multiply
   105,821.96x = 158,731.98 × 31,949.96
4. Step 4: Simplify right side
   105,821.96x = 5,071,480,411.72
5. Step 5: Solve for x
   x = 5,071,480,411.72/105,821.96
6. Step 6: Final answer
   x = 47,924.65