Finding the Fourth Proportional to 49.08, 73.89 and 42.12

Step by Step Solution

1. Step 1: Write the proportion equation
   49.08 : 73.89 = 42.12 : x
2. Step 2: Convert to fraction form
   49.08/73.89 = 42.12/x
3. Step 3: Cross multiply
   49.08x = 73.89 × 42.12
4. Step 4: Simplify right side
   49.08x = 3,112.25
5. Step 5: Solve for x
   x = 3,112.25/49.08
6. Step 6: Final answer
   x = 63.41