Finding the Fourth Proportional to 59.18, 88.80 and 42.17

Step by Step Solution

1. Step 1: Write the proportion equation
   59.18 : 88.80 = 42.17 : x
2. Step 2: Convert to fraction form
   59.18/88.80 = 42.17/x
3. Step 3: Cross multiply
   59.18x = 88.80 × 42.17
4. Step 4: Simplify right side
   59.18x = 3,744.92
5. Step 5: Solve for x
   x = 3,744.92/59.18
6. Step 6: Final answer
   x = 63.28