Finding the Fourth Proportional to 59.41, 81.93 and 42.17

Step by Step Solution

1. Step 1: Write the proportion equation
   59.41 : 81.93 = 42.17 : x
2. Step 2: Convert to fraction form
   59.41/81.93 = 42.17/x
3. Step 3: Cross multiply
   59.41x = 81.93 × 42.17
4. Step 4: Simplify right side
   59.41x = 3,454.78
5. Step 5: Solve for x
   x = 3,454.78/59.41
6. Step 6: Final answer
   x = 58.15