Finding the Fourth Proportional to 59.23, 81.72 and 42.82

Step by Step Solution

1. Step 1: Write the proportion equation
   59.23 : 81.72 = 42.82 : x
2. Step 2: Convert to fraction form
   59.23/81.72 = 42.82/x
3. Step 3: Cross multiply
   59.23x = 81.72 × 42.82
4. Step 4: Simplify right side
   59.23x = 3,499.25
5. Step 5: Solve for x
   x = 3,499.25/59.23
6. Step 6: Final answer
   x = 59.08