Finding the Fourth Proportional to 42.10, 57.83 and 34.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42.10 : 57.83 = 34.82 : x
2. Step 2: Convert to fraction form
   42.10/57.83 = 34.82/x
3. Step 3: Cross multiply
   42.10x = 57.83 × 34.82
4. Step 4: Simplify right side
   42.10x = 2,013.64
5. Step 5: Solve for x
   x = 2,013.64/42.10
6. Step 6: Final answer
   x = 47.83