Finding the Fourth Proportional to 22,704.06, 31,361.61 and 18,939.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,704.06 : 31,361.61 = 18,939.69 : x
2. Step 2: Convert to fraction form
   22,704.06/31,361.61 = 18,939.69/x
3. Step 3: Cross multiply
   22,704.06x = 31,361.61 × 18,939.69
4. Step 4: Simplify right side
   22,704.06x = 593,979,171.30
5. Step 5: Solve for x
   x = 593,979,171.30/22,704.06
6. Step 6: Final answer
   x = 26,161.80