Finding the Fourth Proportional to 22,059.72, 30,443.58 and 12,629.70

Step by Step Solution

1. Step 1: Write the proportion equation
   22,059.72 : 30,443.58 = 12,629.70 : x
2. Step 2: Convert to fraction form
   22,059.72/30,443.58 = 12,629.70/x
3. Step 3: Cross multiply
   22,059.72x = 30,443.58 × 12,629.70
4. Step 4: Simplify right side
   22,059.72x = 384,493,282.33
5. Step 5: Solve for x
   x = 384,493,282.33/22,059.72
6. Step 6: Final answer
   x = 17,429.65