Finding the Fourth Proportional to 21,975.22, 30,327.78 and 12,546.82

Step by Step Solution

1. Step 1: Write the proportion equation
   21,975.22 : 30,327.78 = 12,546.82 : x
2. Step 2: Convert to fraction form
   21,975.22/30,327.78 = 12,546.82/x
3. Step 3: Cross multiply
   21,975.22x = 30,327.78 × 12,546.82
4. Step 4: Simplify right side
   21,975.22x = 380,517,196.66
5. Step 5: Solve for x
   x = 380,517,196.66/21,975.22
6. Step 6: Final answer
   x = 17,315.74