Finding the Fourth Proportional to 10,650.16, 15,978.37 and 3,153.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,650.16 : 15,978.37 = 3,153.91 : x
2. Step 2: Convert to fraction form
   10,650.16/15,978.37 = 3,153.91/x
3. Step 3: Cross multiply
   10,650.16x = 15,978.37 × 3,153.91
4. Step 4: Simplify right side
   10,650.16x = 50,394,340.93
5. Step 5: Solve for x
   x = 50,394,340.93/10,650.16
6. Step 6: Final answer
   x = 4,731.79