Finding the Fourth Proportional to 22,182.38, 30,611.40 and 12,111

Step by Step Solution

1. Step 1: Write the proportion equation
   22,182.38 : 30,611.40 = 12,111 : x
2. Step 2: Convert to fraction form
   22,182.38/30,611.40 = 12,111/x
3. Step 3: Cross multiply
   22,182.38x = 30,611.40 × 12,111
4. Step 4: Simplify right side
   22,182.38x = 370,734,665.40
5. Step 5: Solve for x
   x = 370,734,665.40/22,182.38
6. Step 6: Final answer
   x = 16,713.02