Finding the Fourth Proportional to 37,142.50, 51,257.46 and 20,375.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,142.50 : 51,257.46 = 20,375.50 : x
2. Step 2: Convert to fraction form
   37,142.50/51,257.46 = 20,375.50/x
3. Step 3: Cross multiply
   37,142.50x = 51,257.46 × 20,375.50
4. Step 4: Simplify right side
   37,142.50x = 1,044,396,376.23
5. Step 5: Solve for x
   x = 1,044,396,376.23/37,142.50
6. Step 6: Final answer
   x = 28,118.63