Finding the Fourth Proportional to 109.69, 164.52 and 103.34

Step by Step Solution

1. Step 1: Write the proportion equation
   109.69 : 164.52 = 103.34 : x
2. Step 2: Convert to fraction form
   109.69/164.52 = 103.34/x
3. Step 3: Cross multiply
   109.69x = 164.52 × 103.34
4. Step 4: Simplify right side
   109.69x = 17,001.50
5. Step 5: Solve for x
   x = 17,001.50/109.69
6. Step 6: Final answer
   x = 155.00