Finding the Fourth Proportional to 21,836.27, 30,133.91 and 12,404.84

Step by Step Solution

1. Step 1: Write the proportion equation
   21,836.27 : 30,133.91 = 12,404.84 : x
2. Step 2: Convert to fraction form
   21,836.27/30,133.91 = 12,404.84/x
3. Step 3: Cross multiply
   21,836.27x = 30,133.91 × 12,404.84
4. Step 4: Simplify right side
   21,836.27x = 373,806,119.43
5. Step 5: Solve for x
   x = 373,806,119.43/21,836.27
6. Step 6: Final answer
   x = 17,118.59