Finding the Fourth Proportional to 111.98, 167.83 and 43.47

Step by Step Solution

1. Step 1: Write the proportion equation
   111.98 : 167.83 = 43.47 : x
2. Step 2: Convert to fraction form
   111.98/167.83 = 43.47/x
3. Step 3: Cross multiply
   111.98x = 167.83 × 43.47
4. Step 4: Simplify right side
   111.98x = 7,295.46
5. Step 5: Solve for x
   x = 7,295.46/111.98
6. Step 6: Final answer
   x = 65.15