Finding the Fourth Proportional to 21,831.37, 32,749.82 and 7,039.96

Step by Step Solution

1. Step 1: Write the proportion equation
   21,831.37 : 32,749.82 = 7,039.96 : x
2. Step 2: Convert to fraction form
   21,831.37/32,749.82 = 7,039.96/x
3. Step 3: Cross multiply
   21,831.37x = 32,749.82 × 7,039.96
4. Step 4: Simplify right side
   21,831.37x = 230,557,422.81
5. Step 5: Solve for x
   x = 230,557,422.81/21,831.37
6. Step 6: Final answer
   x = 10,560.83