Finding the Fourth Proportional to 21,814.12, 30,103.38 and 12,384.04

Step by Step Solution

1. Step 1: Write the proportion equation
   21,814.12 : 30,103.38 = 12,384.04 : x
2. Step 2: Convert to fraction form
   21,814.12/30,103.38 = 12,384.04/x
3. Step 3: Cross multiply
   21,814.12x = 30,103.38 × 12,384.04
4. Step 4: Simplify right side
   21,814.12x = 372,801,462.06
5. Step 5: Solve for x
   x = 372,801,462.06/21,814.12
6. Step 6: Final answer
   x = 17,089.92