Finding the Fourth Proportional to 67.39, 100.86 and 52.24

Step by Step Solution

1. Step 1: Write the proportion equation
   67.39 : 100.86 = 52.24 : x
2. Step 2: Convert to fraction form
   67.39/100.86 = 52.24/x
3. Step 3: Cross multiply
   67.39x = 100.86 × 52.24
4. Step 4: Simplify right side
   67.39x = 5,268.67
5. Step 5: Solve for x
   x = 5,268.67/67.39
6. Step 6: Final answer
   x = 78.18