Finding the Fourth Proportional to 42.98, 59.15 and 35.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42.98 : 59.15 = 35.69 : x
2. Step 2: Convert to fraction form
   42.98/59.15 = 35.69/x
3. Step 3: Cross multiply
   42.98x = 59.15 × 35.69
4. Step 4: Simplify right side
   42.98x = 2,110.86
5. Step 5: Solve for x
   x = 2,110.86/42.98
6. Step 6: Final answer
   x = 49.12