Finding the Fourth Proportional to 10,689.81, 14,756.06 and 9,568.77

Step by Step Solution

1. Step 1: Write the proportion equation
   10,689.81 : 14,756.06 = 9,568.77 : x
2. Step 2: Convert to fraction form
   10,689.81/14,756.06 = 9,568.77/x
3. Step 3: Cross multiply
   10,689.81x = 14,756.06 × 9,568.77
4. Step 4: Simplify right side
   10,689.81x = 141,197,296.40
5. Step 5: Solve for x
   x = 141,197,296.40/10,689.81
6. Step 6: Final answer
   x = 13,208.59