Finding the Fourth Proportional to 111.83, 167.72 and 30.65

Step by Step Solution

1. Step 1: Write the proportion equation
   111.83 : 167.72 = 30.65 : x
2. Step 2: Convert to fraction form
   111.83/167.72 = 30.65/x
3. Step 3: Cross multiply
   111.83x = 167.72 × 30.65
4. Step 4: Simplify right side
   111.83x = 5,139.63
5. Step 5: Solve for x
   x = 5,139.63/111.83
6. Step 6: Final answer
   x = 45.96