Finding the Fourth Proportional to 42.98, 64.50 and 24.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42.98 : 64.50 = 24.94 : x
2. Step 2: Convert to fraction form
   42.98/64.50 = 24.94/x
3. Step 3: Cross multiply
   42.98x = 64.50 × 24.94
4. Step 4: Simplify right side
   42.98x = 1,608.18
5. Step 5: Solve for x
   x = 1,608.18/42.98
6. Step 6: Final answer
   x = 37.42