Finding the Fourth Proportional to 10,478.83, 15,716.82 and 4,153.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,478.83 : 15,716.82 = 4,153.61 : x
2. Step 2: Convert to fraction form
   10,478.83/15,716.82 = 4,153.61/x
3. Step 3: Cross multiply
   10,478.83x = 15,716.82 × 4,153.61
4. Step 4: Simplify right side
   10,478.83x = 65,281,540.72
5. Step 5: Solve for x
   x = 65,281,540.72/10,478.83
6. Step 6: Final answer
   x = 6,229.85