Finding the Fourth Proportional to 59.04, 88.49 and 42.70

Step by Step Solution

1. Step 1: Write the proportion equation
   59.04 : 88.49 = 42.70 : x
2. Step 2: Convert to fraction form
   59.04/88.49 = 42.70/x
3. Step 3: Cross multiply
   59.04x = 88.49 × 42.70
4. Step 4: Simplify right side
   59.04x = 3,778.52
5. Step 5: Solve for x
   x = 3,778.52/59.04
6. Step 6: Final answer
   x = 64.00