Finding the Fourth Proportional to 67.74, 101.54 and 42.00

Step by Step Solution

1. Step 1: Write the proportion equation
   67.74 : 101.54 = 42.00 : x
2. Step 2: Convert to fraction form
   67.74/101.54 = 42.00/x
3. Step 3: Cross multiply
   67.74x = 101.54 × 42.00
4. Step 4: Simplify right side
   67.74x = 4,264.17
5. Step 5: Solve for x
   x = 4,264.17/67.74
6. Step 6: Final answer
   x = 62.95