Finding the Fourth Proportional to 62.71, 86.52 and 50.42

Step by Step Solution

1. Step 1: Write the proportion equation
   62.71 : 86.52 = 50.42 : x
2. Step 2: Convert to fraction form
   62.71/86.52 = 50.42/x
3. Step 3: Cross multiply
   62.71x = 86.52 × 50.42
4. Step 4: Simplify right side
   62.71x = 4,362.34
5. Step 5: Solve for x
   x = 4,362.34/62.71
6. Step 6: Final answer
   x = 69.56