Finding the Fourth Proportional to 42.88, 59.18 and 33.23

Step by Step Solution

1. Step 1: Write the proportion equation
   42.88 : 59.18 = 33.23 : x
2. Step 2: Convert to fraction form
   42.88/59.18 = 33.23/x
3. Step 3: Cross multiply
   42.88x = 59.18 × 33.23
4. Step 4: Simplify right side
   42.88x = 1,966.55
5. Step 5: Solve for x
   x = 1,966.55/42.88
6. Step 6: Final answer
   x = 45.86