Finding the Fourth Proportional to 59.36, 88.72 and 42.96

Step by Step Solution

1. Step 1: Write the proportion equation
   59.36 : 88.72 = 42.96 : x
2. Step 2: Convert to fraction form
   59.36/88.72 = 42.96/x
3. Step 3: Cross multiply
   59.36x = 88.72 × 42.96
4. Step 4: Simplify right side
   59.36x = 3,811.30
5. Step 5: Solve for x
   x = 3,811.30/59.36
6. Step 6: Final answer
   x = 64.21