Finding the Fourth Proportional to 42.71, 58.78 and 41.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42.71 : 58.78 = 41.52 : x
2. Step 2: Convert to fraction form
   42.71/58.78 = 41.52/x
3. Step 3: Cross multiply
   42.71x = 58.78 × 41.52
4. Step 4: Simplify right side
   42.71x = 2,440.30
5. Step 5: Solve for x
   x = 2,440.30/42.71
6. Step 6: Final answer
   x = 57.13