Finding the Fourth Proportional to 59.58, 82.25 and 42.18

Step by Step Solution

1. Step 1: Write the proportion equation
   59.58 : 82.25 = 42.18 : x
2. Step 2: Convert to fraction form
   59.58/82.25 = 42.18/x
3. Step 3: Cross multiply
   59.58x = 82.25 × 42.18
4. Step 4: Simplify right side
   59.58x = 3,469.31
5. Step 5: Solve for x
   x = 3,469.31/59.58
6. Step 6: Final answer
   x = 58.23