Finding the Fourth Proportional to 159.15, 238.69 and 43.59

Step by Step Solution

1. Step 1: Write the proportion equation
   159.15 : 238.69 = 43.59 : x
2. Step 2: Convert to fraction form
   159.15/238.69 = 43.59/x
3. Step 3: Cross multiply
   159.15x = 238.69 × 43.59
4. Step 4: Simplify right side
   159.15x = 10,404.50
5. Step 5: Solve for x
   x = 10,404.50/159.15
6. Step 6: Final answer
   x = 65.38