Finding the Fourth Proportional to 10,815.67, 16,223.28 and 5,916.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,815.67 : 16,223.28 = 5,916.43 : x
2. Step 2: Convert to fraction form
   10,815.67/16,223.28 = 5,916.43/x
3. Step 3: Cross multiply
   10,815.67x = 16,223.28 × 5,916.43
4. Step 4: Simplify right side
   10,815.67x = 95,983,900.49
5. Step 5: Solve for x
   x = 95,983,900.49/10,815.67
6. Step 6: Final answer
   x = 8,874.52