Finding the Fourth Proportional to 37,582.50, 51,865.50 and 20,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,582.50 : 51,865.50 = 20,815.50 : x
2. Step 2: Convert to fraction form
   37,582.50/51,865.50 = 20,815.50/x
3. Step 3: Cross multiply
   37,582.50x = 51,865.50 × 20,815.50
4. Step 4: Simplify right side
   37,582.50x = 1,079,606,315.25
5. Step 5: Solve for x
   x = 1,079,606,315.25/37,582.50
6. Step 6: Final answer
   x = 28,726.30