Finding the Fourth Proportional to 48.98, 67.54 and 42.10

Step by Step Solution

1. Step 1: Write the proportion equation
   48.98 : 67.54 = 42.10 : x
2. Step 2: Convert to fraction form
   48.98/67.54 = 42.10/x
3. Step 3: Cross multiply
   48.98x = 67.54 × 42.10
4. Step 4: Simplify right side
   48.98x = 2,843.10
5. Step 5: Solve for x
   x = 2,843.10/48.98
6. Step 6: Final answer
   x = 58.05