Finding the Fourth Proportional to 10,524.71, 15,788.68 and 3,128.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,524.71 : 15,788.68 = 3,128.27 : x
2. Step 2: Convert to fraction form
   10,524.71/15,788.68 = 3,128.27/x
3. Step 3: Cross multiply
   10,524.71x = 15,788.68 × 3,128.27
4. Step 4: Simplify right side
   10,524.71x = 49,391,167.22
5. Step 5: Solve for x
   x = 49,391,167.22/10,524.71
6. Step 6: Final answer
   x = 4,692.88