Finding the Fourth Proportional to 104.83, 144.72 and 69.86

Step by Step Solution

1. Step 1: Write the proportion equation
   104.83 : 144.72 = 69.86 : x
2. Step 2: Convert to fraction form
   104.83/144.72 = 69.86/x
3. Step 3: Cross multiply
   104.83x = 144.72 × 69.86
4. Step 4: Simplify right side
   104.83x = 10,110.50
5. Step 5: Solve for x
   x = 10,110.50/104.83
6. Step 6: Final answer
   x = 96.45