Finding the Fourth Proportional to 37,147.50, 51,264.45 and 20,380.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,147.50 : 51,264.45 = 20,380.50 : x
2. Step 2: Convert to fraction form
   37,147.50/51,264.45 = 20,380.50/x
3. Step 3: Cross multiply
   37,147.50x = 51,264.45 × 20,380.50
4. Step 4: Simplify right side
   37,147.50x = 1,044,795,123.23
5. Step 5: Solve for x
   x = 1,044,795,123.23/37,147.50
6. Step 6: Final answer
   x = 28,125.58