Finding the Fourth Proportional to 9,579.05, 13,214.94 and 5,488.67

Step by Step Solution

1. Step 1: Write the proportion equation
   9,579.05 : 13,214.94 = 5,488.67 : x
2. Step 2: Convert to fraction form
   9,579.05/13,214.94 = 5,488.67/x
3. Step 3: Cross multiply
   9,579.05x = 13,214.94 × 5,488.67
4. Step 4: Simplify right side
   9,579.05x = 72,532,477.77
5. Step 5: Solve for x
   x = 72,532,477.77/9,579.05
6. Step 6: Final answer
   x = 7,571.99