Finding the Fourth Proportional to 22,221.42, 30,666.11 and 12,150.29

Step by Step Solution

1. Step 1: Write the proportion equation
   22,221.42 : 30,666.11 = 12,150.29 : x
2. Step 2: Convert to fraction form
   22,221.42/30,666.11 = 12,150.29/x
3. Step 3: Cross multiply
   22,221.42x = 30,666.11 × 12,150.29
4. Step 4: Simplify right side
   22,221.42x = 372,601,915.59
5. Step 5: Solve for x
   x = 372,601,915.59/22,221.42
6. Step 6: Final answer
   x = 16,767.69