Finding the Fourth Proportional to 16,824.78, 25,188.27 and 9,783.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,824.78 : 25,188.27 = 9,783.30 : x
2. Step 2: Convert to fraction form
   16,824.78/25,188.27 = 9,783.30/x
3. Step 3: Cross multiply
   16,824.78x = 25,188.27 × 9,783.30
4. Step 4: Simplify right side
   16,824.78x = 246,424,401.89
5. Step 5: Solve for x
   x = 246,424,401.89/16,824.78
6. Step 6: Final answer
   x = 14,646.52