Finding the Fourth Proportional to 37,556.89, 51,828.62 and 20,561.28

Step by Step Solution

1. Step 1: Write the proportion equation
   37,556.89 : 51,828.62 = 20,561.28 : x
2. Step 2: Convert to fraction form
   37,556.89/51,828.62 = 20,561.28/x
3. Step 3: Cross multiply
   37,556.89x = 51,828.62 × 20,561.28
4. Step 4: Simplify right side
   37,556.89x = 1,065,662,767.83
5. Step 5: Solve for x
   x = 1,065,662,767.83/37,556.89
6. Step 6: Final answer
   x = 28,374.63