Finding the Fourth Proportional to 69.50, 103.98 and 42.32

Step by Step Solution

1. Step 1: Write the proportion equation
   69.50 : 103.98 = 42.32 : x
2. Step 2: Convert to fraction form
   69.50/103.98 = 42.32/x
3. Step 3: Cross multiply
   69.50x = 103.98 × 42.32
4. Step 4: Simplify right side
   69.50x = 4,400.43
5. Step 5: Solve for x
   x = 4,400.43/69.50
6. Step 6: Final answer
   x = 63.32