Finding the Fourth Proportional to 22,158.46, 30,578.93 and 12,086.83

Step by Step Solution

1. Step 1: Write the proportion equation
   22,158.46 : 30,578.93 = 12,086.83 : x
2. Step 2: Convert to fraction form
   22,158.46/30,578.93 = 12,086.83/x
3. Step 3: Cross multiply
   22,158.46x = 30,578.93 × 12,086.83
4. Step 4: Simplify right side
   22,158.46x = 369,602,328.49
5. Step 5: Solve for x
   x = 369,602,328.49/22,158.46
6. Step 6: Final answer
   x = 16,679.96