Finding the Fourth Proportional to 37,287.56, 51,456.94 and 20,520.56

Step by Step Solution

1. Step 1: Write the proportion equation
   37,287.56 : 51,456.94 = 20,520.56 : x
2. Step 2: Convert to fraction form
   37,287.56/51,456.94 = 20,520.56/x
3. Step 3: Cross multiply
   37,287.56x = 51,456.94 × 20,520.56
4. Step 4: Simplify right side
   37,287.56x = 1,055,925,302.03
5. Step 5: Solve for x
   x = 1,055,925,302.03/37,287.56
6. Step 6: Final answer
   x = 28,318.43