Finding the Fourth Proportional to 61.62, 92.27 and 42.42

Step by Step Solution

1. Step 1: Write the proportion equation
   61.62 : 92.27 = 42.42 : x
2. Step 2: Convert to fraction form
   61.62/92.27 = 42.42/x
3. Step 3: Cross multiply
   61.62x = 92.27 × 42.42
4. Step 4: Simplify right side
   61.62x = 3,914.09
5. Step 5: Solve for x
   x = 3,914.09/61.62
6. Step 6: Final answer
   x = 63.52