Finding the Fourth Proportional to 105,424.48, 158,155.92 and 50,020

Step by Step Solution

1. Step 1: Write the proportion equation
   105,424.48 : 158,155.92 = 50,020 : x
2. Step 2: Convert to fraction form
   105,424.48/158,155.92 = 50,020/x
3. Step 3: Cross multiply
   105,424.48x = 158,155.92 × 50,020
4. Step 4: Simplify right side
   105,424.48x = 7,910,959,118.40
5. Step 5: Solve for x
   x = 7,910,959,118.40/105,424.48
6. Step 6: Final answer
   x = 75,039.11