Finding the Fourth Proportional to 37,012.20, 51,076.42 and 20,245

Step by Step Solution

1. Step 1: Write the proportion equation
   37,012.20 : 51,076.42 = 20,245 : x
2. Step 2: Convert to fraction form
   37,012.20/51,076.42 = 20,245/x
3. Step 3: Cross multiply
   37,012.20x = 51,076.42 × 20,245
4. Step 4: Simplify right side
   37,012.20x = 1,034,042,122.90
5. Step 5: Solve for x
   x = 1,034,042,122.90/37,012.20
6. Step 6: Final answer
   x = 27,937.87