Finding the Fourth Proportional to 37,072.50, 51,160.23 and 20,305.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,072.50 : 51,160.23 = 20,305.50 : x
2. Step 2: Convert to fraction form
   37,072.50/51,160.23 = 20,305.50/x
3. Step 3: Cross multiply
   37,072.50x = 51,160.23 × 20,305.50
4. Step 4: Simplify right side
   37,072.50x = 1,038,834,050.27
5. Step 5: Solve for x
   x = 1,038,834,050.27/37,072.50
6. Step 6: Final answer
   x = 28,021.69