Finding the Fourth Proportional to 10,569.30, 15,839.37 and 7,969.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,569.30 : 15,839.37 = 7,969.38 : x
2. Step 2: Convert to fraction form
   10,569.30/15,839.37 = 7,969.38/x
3. Step 3: Cross multiply
   10,569.30x = 15,839.37 × 7,969.38
4. Step 4: Simplify right side
   10,569.30x = 126,229,958.49
5. Step 5: Solve for x
   x = 126,229,958.49/10,569.30
6. Step 6: Final answer
   x = 11,943.08