Finding the Fourth Proportional to 22,141.92, 30,559.20 and 13,761.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,141.92 : 30,559.20 = 13,761.12 : x
2. Step 2: Convert to fraction form
   22,141.92/30,559.20 = 13,761.12/x
3. Step 3: Cross multiply
   22,141.92x = 30,559.20 × 13,761.12
4. Step 4: Simplify right side
   22,141.92x = 420,528,818.30
5. Step 5: Solve for x
   x = 420,528,818.30/22,141.92
6. Step 6: Final answer
   x = 18,992.43