Finding the Fourth Proportional to 105.58, 158.31 and 37.09

Step by Step Solution

1. Step 1: Write the proportion equation
   105.58 : 158.31 = 37.09 : x
2. Step 2: Convert to fraction form
   105.58/158.31 = 37.09/x
3. Step 3: Cross multiply
   105.58x = 158.31 × 37.09
4. Step 4: Simplify right side
   105.58x = 5,871.92
5. Step 5: Solve for x
   x = 5,871.92/105.58
6. Step 6: Final answer
   x = 55.62