Finding the Fourth Proportional to 22,091.05, 30,485.62 and 12,019.47

Step by Step Solution

1. Step 1: Write the proportion equation
   22,091.05 : 30,485.62 = 12,019.47 : x
2. Step 2: Convert to fraction form
   22,091.05/30,485.62 = 12,019.47/x
3. Step 3: Cross multiply
   22,091.05x = 30,485.62 × 12,019.47
4. Step 4: Simplify right side
   22,091.05x = 366,421,101.01
5. Step 5: Solve for x
   x = 366,421,101.01/22,091.05
6. Step 6: Final answer
   x = 16,586.86