Finding the Fourth Proportional to 72,665.36, 109,034.52 and 33,218.96

Step by Step Solution

1. Step 1: Write the proportion equation
   72,665.36 : 109,034.52 = 33,218.96 : x
2. Step 2: Convert to fraction form
   72,665.36/109,034.52 = 33,218.96/x
3. Step 3: Cross multiply
   72,665.36x = 109,034.52 × 33,218.96
4. Step 4: Simplify right side
   72,665.36x = 3,622,013,358.50
5. Step 5: Solve for x
   x = 3,622,013,358.50/72,665.36
6. Step 6: Final answer
   x = 49,845.12