Finding the Fourth Proportional to 12,196.31, 16,831.01 and 6,607.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.31 : 16,831.01 = 6,607.31 : x
2. Step 2: Convert to fraction form
   12,196.31/16,831.01 = 6,607.31/x
3. Step 3: Cross multiply
   12,196.31x = 16,831.01 × 6,607.31
4. Step 4: Simplify right side
   12,196.31x = 111,207,759.28
5. Step 5: Solve for x
   x = 111,207,759.28/12,196.31
6. Step 6: Final answer
   x = 9,118.15