Finding the Fourth Proportional to 53,317, 79,945.72 and 33,553.20

Step by Step Solution

1. Step 1: Write the proportion equation
   53,317 : 79,945.72 = 33,553.20 : x
2. Step 2: Convert to fraction form
   53,317/79,945.72 = 33,553.20/x
3. Step 3: Cross multiply
   53,317x = 79,945.72 × 33,553.20
4. Step 4: Simplify right side
   53,317x = 2,682,434,732.30
5. Step 5: Solve for x
   x = 2,682,434,732.30/53,317
6. Step 6: Final answer
   x = 50,311.06