Finding the Fourth Proportional to 10,831.25, 16,244.82 and 5,279.01

Step by Step Solution

1. Step 1: Write the proportion equation
   10,831.25 : 16,244.82 = 5,279.01 : x
2. Step 2: Convert to fraction form
   10,831.25/16,244.82 = 5,279.01/x
3. Step 3: Cross multiply
   10,831.25x = 16,244.82 × 5,279.01
4. Step 4: Simplify right side
   10,831.25x = 85,756,567.23
5. Step 5: Solve for x
   x = 85,756,567.23/10,831.25
6. Step 6: Final answer
   x = 7,917.52