Finding the Fourth Proportional to 9,789.94, 13,510.21 and 5,313.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,789.94 : 13,510.21 = 5,313.73 : x
2. Step 2: Convert to fraction form
   9,789.94/13,510.21 = 5,313.73/x
3. Step 3: Cross multiply
   9,789.94x = 13,510.21 × 5,313.73
4. Step 4: Simplify right side
   9,789.94x = 71,789,540.63
5. Step 5: Solve for x
   x = 71,789,540.63/9,789.94
6. Step 6: Final answer
   x = 7,332.99