Finding the Fourth Proportional to 150.91, 226.38 and 42.69

Step by Step Solution

1. Step 1: Write the proportion equation
   150.91 : 226.38 = 42.69 : x
2. Step 2: Convert to fraction form
   150.91/226.38 = 42.69/x
3. Step 3: Cross multiply
   150.91x = 226.38 × 42.69
4. Step 4: Simplify right side
   150.91x = 9,665.17
5. Step 5: Solve for x
   x = 9,665.17/150.91
6. Step 6: Final answer
   x = 64.05