Finding the Fourth Proportional to 37,285.31, 51,453.83 and 20,518.31

Step by Step Solution

1. Step 1: Write the proportion equation
   37,285.31 : 51,453.83 = 20,518.31 : x
2. Step 2: Convert to fraction form
   37,285.31/51,453.83 = 20,518.31/x
3. Step 3: Cross multiply
   37,285.31x = 51,453.83 × 20,518.31
4. Step 4: Simplify right side
   37,285.31x = 1,055,745,814.56
5. Step 5: Solve for x
   x = 1,055,745,814.56/37,285.31
6. Step 6: Final answer
   x = 28,315.33