Finding the Fourth Proportional to 9,789.83, 13,509.99 and 5,313.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,789.83 : 13,509.99 = 5,313.58 : x
2. Step 2: Convert to fraction form
   9,789.83/13,509.99 = 5,313.58/x
3. Step 3: Cross multiply
   9,789.83x = 13,509.99 × 5,313.58
4. Step 4: Simplify right side
   9,789.83x = 71,786,378.89
5. Step 5: Solve for x
   x = 71,786,378.89/9,789.83
6. Step 6: Final answer
   x = 7,332.75