Finding the Fourth Proportional to 42.42, 64.01 and 41.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42.42 : 64.01 = 41.07 : x
2. Step 2: Convert to fraction form
   42.42/64.01 = 41.07/x
3. Step 3: Cross multiply
   42.42x = 64.01 × 41.07
4. Step 4: Simplify right side
   42.42x = 2,628.89
5. Step 5: Solve for x
   x = 2,628.89/42.42
6. Step 6: Final answer
   x = 61.97