Finding the Fourth Proportional to 106.88, 160.34 and 34.72

Step by Step Solution

1. Step 1: Write the proportion equation
   106.88 : 160.34 = 34.72 : x
2. Step 2: Convert to fraction form
   106.88/160.34 = 34.72/x
3. Step 3: Cross multiply
   106.88x = 160.34 × 34.72
4. Step 4: Simplify right side
   106.88x = 5,567.00
5. Step 5: Solve for x
   x = 5,567.00/106.88
6. Step 6: Final answer
   x = 52.09