Finding the Fourth Proportional to 22,299.89, 30,773.59 and 12,868.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,299.89 : 30,773.59 = 12,868.25 : x
2. Step 2: Convert to fraction form
   22,299.89/30,773.59 = 12,868.25/x
3. Step 3: Cross multiply
   22,299.89x = 30,773.59 × 12,868.25
4. Step 4: Simplify right side
   22,299.89x = 396,002,031.31
5. Step 5: Solve for x
   x = 396,002,031.31/22,299.89
6. Step 6: Final answer
   x = 17,758.03