Finding the Fourth Proportional to 22,182.40, 30,611.79 and 12,111.06

Step by Step Solution

1. Step 1: Write the proportion equation
   22,182.40 : 30,611.79 = 12,111.06 : x
2. Step 2: Convert to fraction form
   22,182.40/30,611.79 = 12,111.06/x
3. Step 3: Cross multiply
   22,182.40x = 30,611.79 × 12,111.06
4. Step 4: Simplify right side
   22,182.40x = 370,741,340.19
5. Step 5: Solve for x
   x = 370,741,340.19/22,182.40
6. Step 6: Final answer
   x = 16,713.31