Finding the Fourth Proportional to 105.80, 158.67 and 37.31

Step by Step Solution

1. Step 1: Write the proportion equation
   105.80 : 158.67 = 37.31 : x
2. Step 2: Convert to fraction form
   105.80/158.67 = 37.31/x
3. Step 3: Cross multiply
   105.80x = 158.67 × 37.31
4. Step 4: Simplify right side
   105.80x = 5,919.98
5. Step 5: Solve for x
   x = 5,919.98/105.80
6. Step 6: Final answer
   x = 55.95