Finding the Fourth Proportional to 10,650.72, 15,971.42 and 3,253.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,650.72 : 15,971.42 = 3,253.47 : x
2. Step 2: Convert to fraction form
   10,650.72/15,971.42 = 3,253.47/x
3. Step 3: Cross multiply
   10,650.72x = 15,971.42 × 3,253.47
4. Step 4: Simplify right side
   10,650.72x = 51,962,519.56
5. Step 5: Solve for x
   x = 51,962,519.56/10,650.72
6. Step 6: Final answer
   x = 4,878.78