Finding the Fourth Proportional to 105,597.20, 158,104.20 and 82,269.20

Step by Step Solution

1. Step 1: Write the proportion equation
   105,597.20 : 158,104.20 = 82,269.20 : x
2. Step 2: Convert to fraction form
   105,597.20/158,104.20 = 82,269.20/x
3. Step 3: Cross multiply
   105,597.20x = 158,104.20 × 82,269.20
4. Step 4: Simplify right side
   105,597.20x = 13,007,106,050.64
5. Step 5: Solve for x
   x = 13,007,106,050.64/105,597.20
6. Step 6: Final answer
   x = 123,176.62