Finding the Fourth Proportional to 10,809.37, 16,184.85 and 5,604.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,809.37 : 16,184.85 = 5,604.31 : x
2. Step 2: Convert to fraction form
   10,809.37/16,184.85 = 5,604.31/x
3. Step 3: Cross multiply
   10,809.37x = 16,184.85 × 5,604.31
4. Step 4: Simplify right side
   10,809.37x = 90,704,916.70
5. Step 5: Solve for x
   x = 90,704,916.70/10,809.37
6. Step 6: Final answer
   x = 8,391.32