Finding the Fourth Proportional to 12,196.56, 16,831.26 and 6,607.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.56 : 16,831.26 = 6,607.56 : x
2. Step 2: Convert to fraction form
   12,196.56/16,831.26 = 6,607.56/x
3. Step 3: Cross multiply
   12,196.56x = 16,831.26 × 6,607.56
4. Step 4: Simplify right side
   12,196.56x = 111,213,560.33
5. Step 5: Solve for x
   x = 111,213,560.33/12,196.56
6. Step 6: Final answer
   x = 9,118.44