Finding the Fourth Proportional to 50.58, 69.42 and 42.36

Step by Step Solution

1. Step 1: Write the proportion equation
   50.58 : 69.42 = 42.36 : x
2. Step 2: Convert to fraction form
   50.58/69.42 = 42.36/x
3. Step 3: Cross multiply
   50.58x = 69.42 × 42.36
4. Step 4: Simplify right side
   50.58x = 2,940.63
5. Step 5: Solve for x
   x = 2,940.63/50.58
6. Step 6: Final answer
   x = 58.14