Finding the Fourth Proportional to 12,986.69, 17,923.97 and 7,323.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,986.69 : 17,923.97 = 7,323.17 : x
2. Step 2: Convert to fraction form
   12,986.69/17,923.97 = 7,323.17/x
3. Step 3: Cross multiply
   12,986.69x = 17,923.97 × 7,323.17
4. Step 4: Simplify right side
   12,986.69x = 131,260,242.77
5. Step 5: Solve for x
   x = 131,260,242.77/12,986.69
6. Step 6: Final answer
   x = 10,107.29