Finding the Fourth Proportional to 22,488.50, 31,036.76 and 18,704.99

Step by Step Solution

1. Step 1: Write the proportion equation
   22,488.50 : 31,036.76 = 18,704.99 : x
2. Step 2: Convert to fraction form
   22,488.50/31,036.76 = 18,704.99/x
3. Step 3: Cross multiply
   22,488.50x = 31,036.76 × 18,704.99
4. Step 4: Simplify right side
   22,488.50x = 580,542,036.72
5. Step 5: Solve for x
   x = 580,542,036.72/22,488.50
6. Step 6: Final answer
   x = 25,815.07