Finding the Fourth Proportional to 105,874.88, 158,734.56 and 50,509.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,874.88 : 158,734.56 = 50,509.76 : x
2. Step 2: Convert to fraction form
   105,874.88/158,734.56 = 50,509.76/x
3. Step 3: Cross multiply
   105,874.88x = 158,734.56 × 50,509.76
4. Step 4: Simplify right side
   105,874.88x = 8,017,644,529.31
5. Step 5: Solve for x
   x = 8,017,644,529.31/105,874.88
6. Step 6: Final answer
   x = 75,727.54