Finding the Fourth Proportional to 10,957.86, 16,440.89 and 5,689.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,957.86 : 16,440.89 = 5,689.58 : x
2. Step 2: Convert to fraction form
   10,957.86/16,440.89 = 5,689.58/x
3. Step 3: Cross multiply
   10,957.86x = 16,440.89 × 5,689.58
4. Step 4: Simplify right side
   10,957.86x = 93,541,648.27
5. Step 5: Solve for x
   x = 93,541,648.27/10,957.86
6. Step 6: Final answer
   x = 8,536.49