Finding the Fourth Proportional to 53,825.37, 80,743.56 and 20,573.42

Step by Step Solution

1. Step 1: Write the proportion equation
   53,825.37 : 80,743.56 = 20,573.42 : x
2. Step 2: Convert to fraction form
   53,825.37/80,743.56 = 20,573.42/x
3. Step 3: Cross multiply
   53,825.37x = 80,743.56 × 20,573.42
4. Step 4: Simplify right side
   53,825.37x = 1,661,171,069.31
5. Step 5: Solve for x
   x = 1,661,171,069.31/53,825.37
6. Step 6: Final answer
   x = 30,862.24