Finding the Fourth Proportional to 69.29, 103.82 and 42.25

Step by Step Solution

1. Step 1: Write the proportion equation
   69.29 : 103.82 = 42.25 : x
2. Step 2: Convert to fraction form
   69.29/103.82 = 42.25/x
3. Step 3: Cross multiply
   69.29x = 103.82 × 42.25
4. Step 4: Simplify right side
   69.29x = 4,385.98
5. Step 5: Solve for x
   x = 4,385.98/69.29
6. Step 6: Final answer
   x = 63.30