Finding the Fourth Proportional to 10,826.88, 16,234.52 and 5,559.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,826.88 : 16,234.52 = 5,559.72 : x
2. Step 2: Convert to fraction form
   10,826.88/16,234.52 = 5,559.72/x
3. Step 3: Cross multiply
   10,826.88x = 16,234.52 × 5,559.72
4. Step 4: Simplify right side
   10,826.88x = 90,259,357.74
5. Step 5: Solve for x
   x = 90,259,357.74/10,826.88
6. Step 6: Final answer
   x = 8,336.60