Finding the Fourth Proportional to 22,072.25, 30,459.56 and 12,000.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,072.25 : 30,459.56 = 12,000.69 : x
2. Step 2: Convert to fraction form
   22,072.25/30,459.56 = 12,000.69/x
3. Step 3: Cross multiply
   22,072.25x = 30,459.56 × 12,000.69
4. Step 4: Simplify right side
   22,072.25x = 365,535,677.09
5. Step 5: Solve for x
   x = 365,535,677.09/22,072.25
6. Step 6: Final answer
   x = 16,560.87