Finding the Fourth Proportional to 8,831.04, 12,185.70 and 5,686.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,831.04 : 12,185.70 = 5,686.62 : x
2. Step 2: Convert to fraction form
   8,831.04/12,185.70 = 5,686.62/x
3. Step 3: Cross multiply
   8,831.04x = 12,185.70 × 5,686.62
4. Step 4: Simplify right side
   8,831.04x = 69,295,445.33
5. Step 5: Solve for x
   x = 69,295,445.33/8,831.04
6. Step 6: Final answer
   x = 7,846.80