Finding the Fourth Proportional to 78.32, 108.38 and 67.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78.32 : 108.38 = 67.96 : x
2. Step 2: Convert to fraction form
   78.32/108.38 = 67.96/x
3. Step 3: Cross multiply
   78.32x = 108.38 × 67.96
4. Step 4: Simplify right side
   78.32x = 7,365.50
5. Step 5: Solve for x
   x = 7,365.50/78.32
6. Step 6: Final answer
   x = 94.04