Finding the Fourth Proportional to 22,189.73, 30,620.68 and 12,116.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,189.73 : 30,620.68 = 12,116.22 : x
2. Step 2: Convert to fraction form
   22,189.73/30,620.68 = 12,116.22/x
3. Step 3: Cross multiply
   22,189.73x = 30,620.68 × 12,116.22
4. Step 4: Simplify right side
   22,189.73x = 371,006,895.43
5. Step 5: Solve for x
   x = 371,006,895.43/22,189.73
6. Step 6: Final answer
   x = 16,719.76