Finding the Fourth Proportional to 22,199.94, 30,636.90 and 12,771.54

Step by Step Solution

1. Step 1: Write the proportion equation
   22,199.94 : 30,636.90 = 12,771.54 : x
2. Step 2: Convert to fraction form
   22,199.94/30,636.90 = 12,771.54/x
3. Step 3: Cross multiply
   22,199.94x = 30,636.90 × 12,771.54
4. Step 4: Simplify right side
   22,199.94x = 391,280,393.83
5. Step 5: Solve for x
   x = 391,280,393.83/22,199.94
6. Step 6: Final answer
   x = 17,625.29