Finding the Fourth Proportional to 105.06, 157.59 and 28.03

Step by Step Solution

1. Step 1: Write the proportion equation
   105.06 : 157.59 = 28.03 : x
2. Step 2: Convert to fraction form
   105.06/157.59 = 28.03/x
3. Step 3: Cross multiply
   105.06x = 157.59 × 28.03
4. Step 4: Simplify right side
   105.06x = 4,417.25
5. Step 5: Solve for x
   x = 4,417.25/105.06
6. Step 6: Final answer
   x = 42.05