Finding the Fourth Proportional to 158.25, 237.36 and 42.69

Step by Step Solution

1. Step 1: Write the proportion equation
   158.25 : 237.36 = 42.69 : x
2. Step 2: Convert to fraction form
   158.25/237.36 = 42.69/x
3. Step 3: Cross multiply
   158.25x = 237.36 × 42.69
4. Step 4: Simplify right side
   158.25x = 10,131.50
5. Step 5: Solve for x
   x = 10,131.50/158.25
6. Step 6: Final answer
   x = 64.02