Finding the Fourth Proportional to 11,805.48, 16,298.34 and 7,831.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,805.48 : 16,298.34 = 7,831.98 : x
2. Step 2: Convert to fraction form
   11,805.48/16,298.34 = 7,831.98/x
3. Step 3: Cross multiply
   11,805.48x = 16,298.34 × 7,831.98
4. Step 4: Simplify right side
   11,805.48x = 127,648,272.91
5. Step 5: Solve for x
   x = 127,648,272.91/11,805.48
6. Step 6: Final answer
   x = 10,812.63