Finding the Fourth Proportional to 111.52, 167.28 and 46.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111.52 : 167.28 = 46.50 : x
2. Step 2: Convert to fraction form
   111.52/167.28 = 46.50/x
3. Step 3: Cross multiply
   111.52x = 167.28 × 46.50
4. Step 4: Simplify right side
   111.52x = 7,777.72
5. Step 5: Solve for x
   x = 7,777.72/111.52
6. Step 6: Final answer
   x = 69.74