Finding the Fourth Proportional to 22,231.82, 30,687.64 and 12,804.14

Step by Step Solution

1. Step 1: Write the proportion equation
   22,231.82 : 30,687.64 = 12,804.14 : x
2. Step 2: Convert to fraction form
   22,231.82/30,687.64 = 12,804.14/x
3. Step 3: Cross multiply
   22,231.82x = 30,687.64 × 12,804.14
4. Step 4: Simplify right side
   22,231.82x = 392,928,838.83
5. Step 5: Solve for x
   x = 392,928,838.83/22,231.82
6. Step 6: Final answer
   x = 17,674.16