Finding the Fourth Proportional to 42.34, 63.15 and 41.43

Step by Step Solution

1. Step 1: Write the proportion equation
   42.34 : 63.15 = 41.43 : x
2. Step 2: Convert to fraction form
   42.34/63.15 = 41.43/x
3. Step 3: Cross multiply
   42.34x = 63.15 × 41.43
4. Step 4: Simplify right side
   42.34x = 2,616.30
5. Step 5: Solve for x
   x = 2,616.30/42.34
6. Step 6: Final answer
   x = 61.79