Finding the Fourth Proportional to 21,881.52, 30,196.67 and 12,450.69

Step by Step Solution

1. Step 1: Write the proportion equation
   21,881.52 : 30,196.67 = 12,450.69 : x
2. Step 2: Convert to fraction form
   21,881.52/30,196.67 = 12,450.69/x
3. Step 3: Cross multiply
   21,881.52x = 30,196.67 × 12,450.69
4. Step 4: Simplify right side
   21,881.52x = 375,969,408.33
5. Step 5: Solve for x
   x = 375,969,408.33/21,881.52
6. Step 6: Final answer
   x = 17,182.05