Finding the Fourth Proportional to 109.67, 164.50 and 69.37

Step by Step Solution

1. Step 1: Write the proportion equation
   109.67 : 164.50 = 69.37 : x
2. Step 2: Convert to fraction form
   109.67/164.50 = 69.37/x
3. Step 3: Cross multiply
   109.67x = 164.50 × 69.37
4. Step 4: Simplify right side
   109.67x = 11,411.37
5. Step 5: Solve for x
   x = 11,411.37/109.67
6. Step 6: Final answer
   x = 104.05