Finding the Fourth Proportional to 10,824.56, 16,222.64 and 5,555.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,824.56 : 16,222.64 = 5,555.12 : x
2. Step 2: Convert to fraction form
   10,824.56/16,222.64 = 5,555.12/x
3. Step 3: Cross multiply
   10,824.56x = 16,222.64 × 5,555.12
4. Step 4: Simplify right side
   10,824.56x = 90,118,711.92
5. Step 5: Solve for x
   x = 90,118,711.92/10,824.56
6. Step 6: Final answer
   x = 8,325.39