Finding the Fourth Proportional to 10,957.61, 16,440.51 and 5,689.34

Step by Step Solution

1. Step 1: Write the proportion equation
   10,957.61 : 16,440.51 = 5,689.34 : x
2. Step 2: Convert to fraction form
   10,957.61/16,440.51 = 5,689.34/x
3. Step 3: Cross multiply
   10,957.61x = 16,440.51 × 5,689.34
4. Step 4: Simplify right side
   10,957.61x = 93,535,568.96
5. Step 5: Solve for x
   x = 93,535,568.96/10,957.61
6. Step 6: Final answer
   x = 8,536.13