Finding the Fourth Proportional to 111.71, 167.56 and 88.93

Step by Step Solution

1. Step 1: Write the proportion equation
   111.71 : 167.56 = 88.93 : x
2. Step 2: Convert to fraction form
   111.71/167.56 = 88.93/x
3. Step 3: Cross multiply
   111.71x = 167.56 × 88.93
4. Step 4: Simplify right side
   111.71x = 14,900.27
5. Step 5: Solve for x
   x = 14,900.27/111.71
6. Step 6: Final answer
   x = 133.39