Finding the Fourth Proportional to 10,800.05, 16,205.22 and 5,605.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,800.05 : 16,205.22 = 5,605.92 : x
2. Step 2: Convert to fraction form
   10,800.05/16,205.22 = 5,605.92/x
3. Step 3: Cross multiply
   10,800.05x = 16,205.22 × 5,605.92
4. Step 4: Simplify right side
   10,800.05x = 90,845,166.90
5. Step 5: Solve for x
   x = 90,845,166.90/10,800.05
6. Step 6: Final answer
   x = 8,411.55