Finding the Fourth Proportional to 100.48, 150.71 and 28.33

Step by Step Solution

1. Step 1: Write the proportion equation
   100.48 : 150.71 = 28.33 : x
2. Step 2: Convert to fraction form
   100.48/150.71 = 28.33/x
3. Step 3: Cross multiply
   100.48x = 150.71 × 28.33
4. Step 4: Simplify right side
   100.48x = 4,269.47
5. Step 5: Solve for x
   x = 4,269.47/100.48
6. Step 6: Final answer
   x = 42.49