Finding the Fourth Proportional to 42.32, 58.01 and 42.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42.32 : 58.01 = 42.28 : x
2. Step 2: Convert to fraction form
   42.32/58.01 = 42.28/x
3. Step 3: Cross multiply
   42.32x = 58.01 × 42.28
4. Step 4: Simplify right side
   42.32x = 2,452.66
5. Step 5: Solve for x
   x = 2,452.66/42.32
6. Step 6: Final answer
   x = 57.96