Finding the Fourth Proportional to 109.22, 150.71 and 67.76

Step by Step Solution

1. Step 1: Write the proportion equation
   109.22 : 150.71 = 67.76 : x
2. Step 2: Convert to fraction form
   109.22/150.71 = 67.76/x
3. Step 3: Cross multiply
   109.22x = 150.71 × 67.76
4. Step 4: Simplify right side
   109.22x = 10,211.22
5. Step 5: Solve for x
   x = 10,211.22/109.22
6. Step 6: Final answer
   x = 93.49