Finding the Fourth Proportional to 10,957.23, 15,118.72 and 6,976.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,957.23 : 15,118.72 = 6,976.89 : x
2. Step 2: Convert to fraction form
   10,957.23/15,118.72 = 6,976.89/x
3. Step 3: Cross multiply
   10,957.23x = 15,118.72 × 6,976.89
4. Step 4: Simplify right side
   10,957.23x = 105,481,628.94
5. Step 5: Solve for x
   x = 105,481,628.94/10,957.23
6. Step 6: Final answer
   x = 9,626.67