Finding the Fourth Proportional to 9,320.61, 12,860.70 and 5,544.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,320.61 : 12,860.70 = 5,544.69 : x
2. Step 2: Convert to fraction form
   9,320.61/12,860.70 = 5,544.69/x
3. Step 3: Cross multiply
   9,320.61x = 12,860.70 × 5,544.69
4. Step 4: Simplify right side
   9,320.61x = 71,308,594.68
5. Step 5: Solve for x
   x = 71,308,594.68/9,320.61
6. Step 6: Final answer
   x = 7,650.64