Finding the Fourth Proportional to 111.63, 167.40 and 34.59

Step by Step Solution

1. Step 1: Write the proportion equation
   111.63 : 167.40 = 34.59 : x
2. Step 2: Convert to fraction form
   111.63/167.40 = 34.59/x
3. Step 3: Cross multiply
   111.63x = 167.40 × 34.59
4. Step 4: Simplify right side
   111.63x = 5,790.37
5. Step 5: Solve for x
   x = 5,790.37/111.63
6. Step 6: Final answer
   x = 51.87