Finding the Fourth Proportional to 105.37, 157.96 and 50.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105.37 : 157.96 = 50.50 : x
2. Step 2: Convert to fraction form
   105.37/157.96 = 50.50/x
3. Step 3: Cross multiply
   105.37x = 157.96 × 50.50
4. Step 4: Simplify right side
   105.37x = 7,976.46
5. Step 5: Solve for x
   x = 7,976.46/105.37
6. Step 6: Final answer
   x = 75.70