Finding the Fourth Proportional to 22,446.89, 30,989.99 and 19,956.00

Step by Step Solution

1. Step 1: Write the proportion equation
   22,446.89 : 30,989.99 = 19,956.00 : x
2. Step 2: Convert to fraction form
   22,446.89/30,989.99 = 19,956.00/x
3. Step 3: Cross multiply
   22,446.89x = 30,989.99 × 19,956.00
4. Step 4: Simplify right side
   22,446.89x = 618,436,406.54
5. Step 5: Solve for x
   x = 618,436,406.54/22,446.89
6. Step 6: Final answer
   x = 27,551.10