Finding the Fourth Proportional to 160.72, 222.01 and 137.33

Step by Step Solution

1. Step 1: Write the proportion equation
   160.72 : 222.01 = 137.33 : x
2. Step 2: Convert to fraction form
   160.72/222.01 = 137.33/x
3. Step 3: Cross multiply
   160.72x = 222.01 × 137.33
4. Step 4: Simplify right side
   160.72x = 30,488.01
5. Step 5: Solve for x
   x = 30,488.01/160.72
6. Step 6: Final answer
   x = 189.70