Finding the Fourth Proportional to 42.98, 59.33 and 29.21

Step by Step Solution

1. Step 1: Write the proportion equation
   42.98 : 59.33 = 29.21 : x
2. Step 2: Convert to fraction form
   42.98/59.33 = 29.21/x
3. Step 3: Cross multiply
   42.98x = 59.33 × 29.21
4. Step 4: Simplify right side
   42.98x = 1,732.88
5. Step 5: Solve for x
   x = 1,732.88/42.98
6. Step 6: Final answer
   x = 40.32