Finding the Fourth Proportional to 22,308.63, 30,786.77 and 12,237.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,308.63 : 30,786.77 = 12,237.50 : x
2. Step 2: Convert to fraction form
   22,308.63/30,786.77 = 12,237.50/x
3. Step 3: Cross multiply
   22,308.63x = 30,786.77 × 12,237.50
4. Step 4: Simplify right side
   22,308.63x = 376,752,882.75
5. Step 5: Solve for x
   x = 376,752,882.75/22,308.63
6. Step 6: Final answer
   x = 16,888.21