Finding the Fourth Proportional to 109.08, 162.72 and 107.93

Step by Step Solution

1. Step 1: Write the proportion equation
   109.08 : 162.72 = 107.93 : x
2. Step 2: Convert to fraction form
   109.08/162.72 = 107.93/x
3. Step 3: Cross multiply
   109.08x = 162.72 × 107.93
4. Step 4: Simplify right side
   109.08x = 17,562.78
5. Step 5: Solve for x
   x = 17,562.78/109.08
6. Step 6: Final answer
   x = 161.01