Finding the Fourth Proportional to 8,322.57, 11,489.76 and 5,673.87

Step by Step Solution

1. Step 1: Write the proportion equation
   8,322.57 : 11,489.76 = 5,673.87 : x
2. Step 2: Convert to fraction form
   8,322.57/11,489.76 = 5,673.87/x
3. Step 3: Cross multiply
   8,322.57x = 11,489.76 × 5,673.87
4. Step 4: Simplify right side
   8,322.57x = 65,191,404.57
5. Step 5: Solve for x
   x = 65,191,404.57/8,322.57
6. Step 6: Final answer
   x = 7,833.09