Finding the Fourth Proportional to 11,200.09, 16,800.10 and 5,355.33

Step by Step Solution

1. Step 1: Write the proportion equation
   11,200.09 : 16,800.10 = 5,355.33 : x
2. Step 2: Convert to fraction form
   11,200.09/16,800.10 = 5,355.33/x
3. Step 3: Cross multiply
   11,200.09x = 16,800.10 × 5,355.33
4. Step 4: Simplify right side
   11,200.09x = 89,970,079.53
5. Step 5: Solve for x
   x = 89,970,079.53/11,200.09
6. Step 6: Final answer
   x = 8,032.98