Finding the Fourth Proportional to 37,493.76, 51,743.04 and 20,728.32

Step by Step Solution

1. Step 1: Write the proportion equation
   37,493.76 : 51,743.04 = 20,728.32 : x
2. Step 2: Convert to fraction form
   37,493.76/51,743.04 = 20,728.32/x
3. Step 3: Cross multiply
   37,493.76x = 51,743.04 × 20,728.32
4. Step 4: Simplify right side
   37,493.76x = 1,072,546,290.89
5. Step 5: Solve for x
   x = 1,072,546,290.89/37,493.76
6. Step 6: Final answer
   x = 28,605.99