Finding the Fourth Proportional to 67.64, 101.96 and 55.69

Step by Step Solution

1. Step 1: Write the proportion equation
   67.64 : 101.96 = 55.69 : x
2. Step 2: Convert to fraction form
   67.64/101.96 = 55.69/x
3. Step 3: Cross multiply
   67.64x = 101.96 × 55.69
4. Step 4: Simplify right side
   67.64x = 5,677.83
5. Step 5: Solve for x
   x = 5,677.83/67.64
6. Step 6: Final answer
   x = 83.95