Finding the Fourth Proportional to 12,969.08, 17,896.62 and 7,661.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,969.08 : 17,896.62 = 7,661.96 : x
2. Step 2: Convert to fraction form
   12,969.08/17,896.62 = 7,661.96/x
3. Step 3: Cross multiply
   12,969.08x = 17,896.62 × 7,661.96
4. Step 4: Simplify right side
   12,969.08x = 137,123,186.58
5. Step 5: Solve for x
   x = 137,123,186.58/12,969.08
6. Step 6: Final answer
   x = 10,573.09