Finding the Fourth Proportional to 22,091.43, 30,485.26 and 12,019.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,091.43 : 30,485.26 = 12,019.91 : x
2. Step 2: Convert to fraction form
   22,091.43/30,485.26 = 12,019.91/x
3. Step 3: Cross multiply
   22,091.43x = 30,485.26 × 12,019.91
4. Step 4: Simplify right side
   22,091.43x = 366,430,021.43
5. Step 5: Solve for x
   x = 366,430,021.43/22,091.43
6. Step 6: Final answer
   x = 16,586.98