Finding the Fourth Proportional to 111.61, 154.01 and 67.96

Step by Step Solution

1. Step 1: Write the proportion equation
   111.61 : 154.01 = 67.96 : x
2. Step 2: Convert to fraction form
   111.61/154.01 = 67.96/x
3. Step 3: Cross multiply
   111.61x = 154.01 × 67.96
4. Step 4: Simplify right side
   111.61x = 10,465.41
5. Step 5: Solve for x
   x = 10,465.41/111.61
6. Step 6: Final answer
   x = 93.77