Finding the Fourth Proportional to 9,789.94, 13,510.13 and 5,313.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,789.94 : 13,510.13 = 5,313.69 : x
2. Step 2: Convert to fraction form
   9,789.94/13,510.13 = 5,313.69/x
3. Step 3: Cross multiply
   9,789.94x = 13,510.13 × 5,313.69
4. Step 4: Simplify right side
   9,789.94x = 71,788,642.68
5. Step 5: Solve for x
   x = 71,788,642.68/9,789.94
6. Step 6: Final answer
   x = 7,332.90