Finding the Fourth Proportional to 111.05, 166.60 and 34.01

Step by Step Solution

1. Step 1: Write the proportion equation
   111.05 : 166.60 = 34.01 : x
2. Step 2: Convert to fraction form
   111.05/166.60 = 34.01/x
3. Step 3: Cross multiply
   111.05x = 166.60 × 34.01
4. Step 4: Simplify right side
   111.05x = 5,666.07
5. Step 5: Solve for x
   x = 5,666.07/111.05
6. Step 6: Final answer
   x = 51.02