Finding the Fourth Proportional to 111.94, 167.79 and 46.91

Step by Step Solution

1. Step 1: Write the proportion equation
   111.94 : 167.79 = 46.91 : x
2. Step 2: Convert to fraction form
   111.94/167.79 = 46.91/x
3. Step 3: Cross multiply
   111.94x = 167.79 × 46.91
4. Step 4: Simplify right side
   111.94x = 7,871.03
5. Step 5: Solve for x
   x = 7,871.03/111.94
6. Step 6: Final answer
   x = 70.31