Finding the Fourth Proportional to 42.10, 63.17 and 33.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42.10 : 63.17 = 33.16 : x
2. Step 2: Convert to fraction form
   42.10/63.17 = 33.16/x
3. Step 3: Cross multiply
   42.10x = 63.17 × 33.16
4. Step 4: Simplify right side
   42.10x = 2,094.72
5. Step 5: Solve for x
   x = 2,094.72/42.10
6. Step 6: Final answer
   x = 49.76