Finding the Fourth Proportional to 37,644.50, 51,949.50 and 20,877.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,644.50 : 51,949.50 = 20,877.50 : x
2. Step 2: Convert to fraction form
   37,644.50/51,949.50 = 20,877.50/x
3. Step 3: Cross multiply
   37,644.50x = 51,949.50 × 20,877.50
4. Step 4: Simplify right side
   37,644.50x = 1,084,575,686.25
5. Step 5: Solve for x
   x = 1,084,575,686.25/37,644.50
6. Step 6: Final answer
   x = 28,811.00