Finding the Fourth Proportional to 9,831.60, 14,664.72 and 8,945.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,831.60 : 14,664.72 = 8,945.76 : x
2. Step 2: Convert to fraction form
   9,831.60/14,664.72 = 8,945.76/x
3. Step 3: Cross multiply
   9,831.60x = 14,664.72 × 8,945.76
4. Step 4: Simplify right side
   9,831.60x = 131,187,065.59
5. Step 5: Solve for x
   x = 131,187,065.59/9,831.60
6. Step 6: Final answer
   x = 13,343.41