Finding the Fourth Proportional to 9,972.99, 14,959.89 and 3,399.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,972.99 : 14,959.89 = 3,399.23 : x
2. Step 2: Convert to fraction form
   9,972.99/14,959.89 = 3,399.23/x
3. Step 3: Cross multiply
   9,972.99x = 14,959.89 × 3,399.23
4. Step 4: Simplify right side
   9,972.99x = 50,852,144.28
5. Step 5: Solve for x
   x = 50,852,144.28/9,972.99
6. Step 6: Final answer
   x = 5,098.99