Finding the Fourth Proportional to 10,540.76, 15,815.82 and 5,350.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,540.76 : 15,815.82 = 5,350.28 : x
2. Step 2: Convert to fraction form
   10,540.76/15,815.82 = 5,350.28/x
3. Step 3: Cross multiply
   10,540.76x = 15,815.82 × 5,350.28
4. Step 4: Simplify right side
   10,540.76x = 84,619,065.43
5. Step 5: Solve for x
   x = 84,619,065.43/10,540.76
6. Step 6: Final answer
   x = 8,027.80