Finding the Fourth Proportional to 9,802.76, 14,684.25 and 7,831.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,802.76 : 14,684.25 = 7,831.73 : x
2. Step 2: Convert to fraction form
   9,802.76/14,684.25 = 7,831.73/x
3. Step 3: Cross multiply
   9,802.76x = 14,684.25 × 7,831.73
4. Step 4: Simplify right side
   9,802.76x = 115,003,007.83
5. Step 5: Solve for x
   x = 115,003,007.83/9,802.76
6. Step 6: Final answer
   x = 11,731.70