Finding the Fourth Proportional to 69.50, 103.71 and 67.98

Step by Step Solution

1. Step 1: Write the proportion equation
   69.50 : 103.71 = 67.98 : x
2. Step 2: Convert to fraction form
   69.50/103.71 = 67.98/x
3. Step 3: Cross multiply
   69.50x = 103.71 × 67.98
4. Step 4: Simplify right side
   69.50x = 7,050.21
5. Step 5: Solve for x
   x = 7,050.21/69.50
6. Step 6: Final answer
   x = 101.45