Finding the Fourth Proportional to 42.98, 59.01 and 38.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42.98 : 59.01 = 38.12 : x
2. Step 2: Convert to fraction form
   42.98/59.01 = 38.12/x
3. Step 3: Cross multiply
   42.98x = 59.01 × 38.12
4. Step 4: Simplify right side
   42.98x = 2,249.27
5. Step 5: Solve for x
   x = 2,249.27/42.98
6. Step 6: Final answer
   x = 52.33