Finding the Fourth Proportional to 109.29, 150.83 and 67.88

Step by Step Solution

1. Step 1: Write the proportion equation
   109.29 : 150.83 = 67.88 : x
2. Step 2: Convert to fraction form
   109.29/150.83 = 67.88/x
3. Step 3: Cross multiply
   109.29x = 150.83 × 67.88
4. Step 4: Simplify right side
   109.29x = 10,237.25
5. Step 5: Solve for x
   x = 10,237.25/109.29
6. Step 6: Final answer
   x = 93.67