Finding the Fourth Proportional to 10,418.62, 15,632.90 and 4,871.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,418.62 : 15,632.90 = 4,871.15 : x
2. Step 2: Convert to fraction form
   10,418.62/15,632.90 = 4,871.15/x
3. Step 3: Cross multiply
   10,418.62x = 15,632.90 × 4,871.15
4. Step 4: Simplify right side
   10,418.62x = 76,150,233.83
5. Step 5: Solve for x
   x = 76,150,233.83/10,418.62
6. Step 6: Final answer
   x = 7,309.05