Finding the Fourth Proportional to 67.83, 101.75 and 42.10

Step by Step Solution

1. Step 1: Write the proportion equation
   67.83 : 101.75 = 42.10 : x
2. Step 2: Convert to fraction form
   67.83/101.75 = 42.10/x
3. Step 3: Cross multiply
   67.83x = 101.75 × 42.10
4. Step 4: Simplify right side
   67.83x = 4,283.53
5. Step 5: Solve for x
   x = 4,283.53/67.83
6. Step 6: Final answer
   x = 63.15