Finding the Fourth Proportional to 10,689.59, 14,727.49 and 7,456.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,689.59 : 14,727.49 = 7,456.32 : x
2. Step 2: Convert to fraction form
   10,689.59/14,727.49 = 7,456.32/x
3. Step 3: Cross multiply
   10,689.59x = 14,727.49 × 7,456.32
4. Step 4: Simplify right side
   10,689.59x = 109,812,859.60
5. Step 5: Solve for x
   x = 109,812,859.60/10,689.59
6. Step 6: Final answer
   x = 10,272.88