Finding the Fourth Proportional to 37,573.50, 51,853.05 and 20,806.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,573.50 : 51,853.05 = 20,806.50 : x
2. Step 2: Convert to fraction form
   37,573.50/51,853.05 = 20,806.50/x
3. Step 3: Cross multiply
   37,573.50x = 51,853.05 × 20,806.50
4. Step 4: Simplify right side
   37,573.50x = 1,078,880,484.83
5. Step 5: Solve for x
   x = 1,078,880,484.83/37,573.50
6. Step 6: Final answer
   x = 28,713.87