Finding the Fourth Proportional to 111.56, 167.18 and 70.83

Step by Step Solution

1. Step 1: Write the proportion equation
   111.56 : 167.18 = 70.83 : x
2. Step 2: Convert to fraction form
   111.56/167.18 = 70.83/x
3. Step 3: Cross multiply
   111.56x = 167.18 × 70.83
4. Step 4: Simplify right side
   111.56x = 11,841.01
5. Step 5: Solve for x
   x = 11,841.01/111.56
6. Step 6: Final answer
   x = 106.14