Finding the Fourth Proportional to 10,990.35, 16,456.37 and 5,785.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,990.35 : 16,456.37 = 5,785.29 : x
2. Step 2: Convert to fraction form
   10,990.35/16,456.37 = 5,785.29/x
3. Step 3: Cross multiply
   10,990.35x = 16,456.37 × 5,785.29
4. Step 4: Simplify right side
   10,990.35x = 95,204,843.87
5. Step 5: Solve for x
   x = 95,204,843.87/10,990.35
6. Step 6: Final answer
   x = 8,662.59