Finding the Fourth Proportional to 42.21, 58.25 and 34.01

Step by Step Solution

1. Step 1: Write the proportion equation
   42.21 : 58.25 = 34.01 : x
2. Step 2: Convert to fraction form
   42.21/58.25 = 34.01/x
3. Step 3: Cross multiply
   42.21x = 58.25 × 34.01
4. Step 4: Simplify right side
   42.21x = 1,981.31
5. Step 5: Solve for x
   x = 1,981.31/42.21
6. Step 6: Final answer
   x = 46.94