Finding the Fourth Proportional to 42.49, 58.70 and 34.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42.49 : 58.70 = 34.25 : x
2. Step 2: Convert to fraction form
   42.49/58.70 = 34.25/x
3. Step 3: Cross multiply
   42.49x = 58.70 × 34.25
4. Step 4: Simplify right side
   42.49x = 2,010.34
5. Step 5: Solve for x
   x = 2,010.34/42.49
6. Step 6: Final answer
   x = 47.32