Finding the Fourth Proportional to 22,158.06, 30,576.99 and 12,086.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,158.06 : 30,576.99 = 12,086.42 : x
2. Step 2: Convert to fraction form
   22,158.06/30,576.99 = 12,086.42/x
3. Step 3: Cross multiply
   22,158.06x = 30,576.99 × 12,086.42
4. Step 4: Simplify right side
   22,158.06x = 369,566,235.91
5. Step 5: Solve for x
   x = 369,566,235.91/22,158.06
6. Step 6: Final answer
   x = 16,678.64