Finding the Fourth Proportional to 10,822.82, 16,242.73 and 5,557.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,822.82 : 16,242.73 = 5,557.61 : x
2. Step 2: Convert to fraction form
   10,822.82/16,242.73 = 5,557.61/x
3. Step 3: Cross multiply
   10,822.82x = 16,242.73 × 5,557.61
4. Step 4: Simplify right side
   10,822.82x = 90,270,785.39
5. Step 5: Solve for x
   x = 90,270,785.39/10,822.82
6. Step 6: Final answer
   x = 8,340.79