Finding the Fourth Proportional to 79.63, 109.83 and 50.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79.63 : 109.83 = 50.50 : x
2. Step 2: Convert to fraction form
   79.63/109.83 = 50.50/x
3. Step 3: Cross multiply
   79.63x = 109.83 × 50.50
4. Step 4: Simplify right side
   79.63x = 5,546.42
5. Step 5: Solve for x
   x = 5,546.42/79.63
6. Step 6: Final answer
   x = 69.65