Finding the Fourth Proportional to 105.58, 158.42 and 37.15

Step by Step Solution

1. Step 1: Write the proportion equation
   105.58 : 158.42 = 37.15 : x
2. Step 2: Convert to fraction form
   105.58/158.42 = 37.15/x
3. Step 3: Cross multiply
   105.58x = 158.42 × 37.15
4. Step 4: Simplify right side
   105.58x = 5,885.30
5. Step 5: Solve for x
   x = 5,885.30/105.58
6. Step 6: Final answer
   x = 55.74