Finding the Fourth Proportional to 12,959.24, 17,892.34 and 9,969.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,959.24 : 17,892.34 = 9,969.80 : x
2. Step 2: Convert to fraction form
   12,959.24/17,892.34 = 9,969.80/x
3. Step 3: Cross multiply
   12,959.24x = 17,892.34 × 9,969.80
4. Step 4: Simplify right side
   12,959.24x = 178,383,051.33
5. Step 5: Solve for x
   x = 178,383,051.33/12,959.24
6. Step 6: Final answer
   x = 13,764.93