Finding the Fourth Proportional to 9,969.99, 14,945.75 and 3,391.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,969.99 : 14,945.75 = 3,391.56 : x
2. Step 2: Convert to fraction form
   9,969.99/14,945.75 = 3,391.56/x
3. Step 3: Cross multiply
   9,969.99x = 14,945.75 × 3,391.56
4. Step 4: Simplify right side
   9,969.99x = 50,689,396.92
5. Step 5: Solve for x
   x = 50,689,396.92/9,969.99
6. Step 6: Final answer
   x = 5,084.20