Finding the Fourth Proportional to 21,627.94, 29,846.56 and 12,196.51

Step by Step Solution

1. Step 1: Write the proportion equation
   21,627.94 : 29,846.56 = 12,196.51 : x
2. Step 2: Convert to fraction form
   21,627.94/29,846.56 = 12,196.51/x
3. Step 3: Cross multiply
   21,627.94x = 29,846.56 × 12,196.51
4. Step 4: Simplify right side
   21,627.94x = 364,023,867.51
5. Step 5: Solve for x
   x = 364,023,867.51/21,627.94
6. Step 6: Final answer
   x = 16,831.19