Finding the Fourth Proportional to 8,369.67, 12,556.61 and 5,909.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,369.67 : 12,556.61 = 5,909.30 : x
2. Step 2: Convert to fraction form
   8,369.67/12,556.61 = 5,909.30/x
3. Step 3: Cross multiply
   8,369.67x = 12,556.61 × 5,909.30
4. Step 4: Simplify right side
   8,369.67x = 74,200,712.69
5. Step 5: Solve for x
   x = 74,200,712.69/8,369.67
6. Step 6: Final answer
   x = 8,865.43