Finding the Fourth Proportional to 42.42, 58.53 and 41.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42.42 : 58.53 = 41.82 : x
2. Step 2: Convert to fraction form
   42.42/58.53 = 41.82/x
3. Step 3: Cross multiply
   42.42x = 58.53 × 41.82
4. Step 4: Simplify right side
   42.42x = 2,447.72
5. Step 5: Solve for x
   x = 2,447.72/42.42
6. Step 6: Final answer
   x = 57.70