Finding the Fourth Proportional to 9,327.45, 12,873.36 and 5,550.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,327.45 : 12,873.36 = 5,550.78 : x
2. Step 2: Convert to fraction form
   9,327.45/12,873.36 = 5,550.78/x
3. Step 3: Cross multiply
   9,327.45x = 12,873.36 × 5,550.78
4. Step 4: Simplify right side
   9,327.45x = 71,457,189.22
5. Step 5: Solve for x
   x = 71,457,189.22/9,327.45
6. Step 6: Final answer
   x = 7,660.96