Finding the Fourth Proportional to 42.98, 59.29 and 29.18

Step by Step Solution

1. Step 1: Write the proportion equation
   42.98 : 59.29 = 29.18 : x
2. Step 2: Convert to fraction form
   42.98/59.29 = 29.18/x
3. Step 3: Cross multiply
   42.98x = 59.29 × 29.18
4. Step 4: Simplify right side
   42.98x = 1,729.94
5. Step 5: Solve for x
   x = 1,729.94/42.98
6. Step 6: Final answer
   x = 40.25