Finding the Fourth Proportional to 72,647.10, 108,934.20 and 33,159.60

Step by Step Solution

1. Step 1: Write the proportion equation
   72,647.10 : 108,934.20 = 33,159.60 : x
2. Step 2: Convert to fraction form
   72,647.10/108,934.20 = 33,159.60/x
3. Step 3: Cross multiply
   72,647.10x = 108,934.20 × 33,159.60
4. Step 4: Simplify right side
   72,647.10x = 3,612,214,498.32
5. Step 5: Solve for x
   x = 3,612,214,498.32/72,647.10
6. Step 6: Final answer
   x = 49,722.76