Finding the Fourth Proportional to 60.59, 83.57 and 42.18

Step by Step Solution

1. Step 1: Write the proportion equation
   60.59 : 83.57 = 42.18 : x
2. Step 2: Convert to fraction form
   60.59/83.57 = 42.18/x
3. Step 3: Cross multiply
   60.59x = 83.57 × 42.18
4. Step 4: Simplify right side
   60.59x = 3,524.98
5. Step 5: Solve for x
   x = 3,524.98/60.59
6. Step 6: Final answer
   x = 58.18