Finding the Fourth Proportional to 22,091.56, 30,486.51 and 12,020.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,091.56 : 30,486.51 = 12,020.09 : x
2. Step 2: Convert to fraction form
   22,091.56/30,486.51 = 12,020.09/x
3. Step 3: Cross multiply
   22,091.56x = 30,486.51 × 12,020.09
4. Step 4: Simplify right side
   22,091.56x = 366,450,441.55
5. Step 5: Solve for x
   x = 366,450,441.55/22,091.56
6. Step 6: Final answer
   x = 16,587.80