Finding the Fourth Proportional to 8,831.09, 12,179.86 and 5,809.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,831.09 : 12,179.86 = 5,809.32 : x
2. Step 2: Convert to fraction form
   8,831.09/12,179.86 = 5,809.32/x
3. Step 3: Cross multiply
   8,831.09x = 12,179.86 × 5,809.32
4. Step 4: Simplify right side
   8,831.09x = 70,756,704.30
5. Step 5: Solve for x
   x = 70,756,704.30/8,831.09
6. Step 6: Final answer
   x = 8,012.23