Finding the Fourth Proportional to 37,287.37, 51,456.57 and 20,520.37

Step by Step Solution

1. Step 1: Write the proportion equation
   37,287.37 : 51,456.57 = 20,520.37 : x
2. Step 2: Convert to fraction form
   37,287.37/51,456.57 = 20,520.37/x
3. Step 3: Cross multiply
   37,287.37x = 51,456.57 × 20,520.37
4. Step 4: Simplify right side
   37,287.37x = 1,055,907,598.05
5. Step 5: Solve for x
   x = 1,055,907,598.05/37,287.37
6. Step 6: Final answer
   x = 28,318.11