Finding the Fourth Proportional to 22,137, 30,549.37 and 12,705.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,137 : 30,549.37 = 12,705.56 : x
2. Step 2: Convert to fraction form
   22,137/30,549.37 = 12,705.56/x
3. Step 3: Cross multiply
   22,137x = 30,549.37 × 12,705.56
4. Step 4: Simplify right side
   22,137x = 388,146,853.50
5. Step 5: Solve for x
   x = 388,146,853.50/22,137
6. Step 6: Final answer
   x = 17,533.85