Finding the Fourth Proportional to 42.72, 58.99 and 33.97

Step by Step Solution

1. Step 1: Write the proportion equation
   42.72 : 58.99 = 33.97 : x
2. Step 2: Convert to fraction form
   42.72/58.99 = 33.97/x
3. Step 3: Cross multiply
   42.72x = 58.99 × 33.97
4. Step 4: Simplify right side
   42.72x = 2,003.89
5. Step 5: Solve for x
   x = 2,003.89/42.72
6. Step 6: Final answer
   x = 46.91