Finding the Fourth Proportional to 12,969.09, 17,896.62 and 7,661.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,969.09 : 17,896.62 = 7,661.97 : x
2. Step 2: Convert to fraction form
   12,969.09/17,896.62 = 7,661.97/x
3. Step 3: Cross multiply
   12,969.09x = 17,896.62 × 7,661.97
4. Step 4: Simplify right side
   12,969.09x = 137,123,365.54
5. Step 5: Solve for x
   x = 137,123,365.54/12,969.09
6. Step 6: Final answer
   x = 10,573.09