Finding the Fourth Proportional to 21,849.26, 32,806.71 and 12,499.84

Step by Step Solution

1. Step 1: Write the proportion equation
   21,849.26 : 32,806.71 = 12,499.84 : x
2. Step 2: Convert to fraction form
   21,849.26/32,806.71 = 12,499.84/x
3. Step 3: Cross multiply
   21,849.26x = 32,806.71 × 12,499.84
4. Step 4: Simplify right side
   21,849.26x = 410,078,461.89
5. Step 5: Solve for x
   x = 410,078,461.89/21,849.26
6. Step 6: Final answer
   x = 18,768.53