Finding the Fourth Proportional to 10,689.10, 14,760.02 and 8,031.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,689.10 : 14,760.02 = 8,031.89 : x
2. Step 2: Convert to fraction form
   10,689.10/14,760.02 = 8,031.89/x
3. Step 3: Cross multiply
   10,689.10x = 14,760.02 × 8,031.89
4. Step 4: Simplify right side
   10,689.10x = 118,550,857.04
5. Step 5: Solve for x
   x = 118,550,857.04/10,689.10
6. Step 6: Final answer
   x = 11,090.82