Finding the Fourth Proportional to 9,358.69, 12,909.33 and 5,579.33

Step by Step Solution

1. Step 1: Write the proportion equation
   9,358.69 : 12,909.33 = 5,579.33 : x
2. Step 2: Convert to fraction form
   9,358.69/12,909.33 = 5,579.33/x
3. Step 3: Cross multiply
   9,358.69x = 12,909.33 × 5,579.33
4. Step 4: Simplify right side
   9,358.69x = 72,025,412.15
5. Step 5: Solve for x
   x = 72,025,412.15/9,358.69
6. Step 6: Final answer
   x = 7,696.10