Finding the Fourth Proportional to 22,234.82, 30,691.78 and 12,807.14

Step by Step Solution

1. Step 1: Write the proportion equation
   22,234.82 : 30,691.78 = 12,807.14 : x
2. Step 2: Convert to fraction form
   22,234.82/30,691.78 = 12,807.14/x
3. Step 3: Cross multiply
   22,234.82x = 30,691.78 × 12,807.14
4. Step 4: Simplify right side
   22,234.82x = 393,073,923.31
5. Step 5: Solve for x
   x = 393,073,923.31/22,234.82
6. Step 6: Final answer
   x = 17,678.30