Finding the Fourth Proportional to 16,804.78, 23,190.24 and 9,250.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,804.78 : 23,190.24 = 9,250.72 : x
2. Step 2: Convert to fraction form
   16,804.78/23,190.24 = 9,250.72/x
3. Step 3: Cross multiply
   16,804.78x = 23,190.24 × 9,250.72
4. Step 4: Simplify right side
   16,804.78x = 214,526,416.97
5. Step 5: Solve for x
   x = 214,526,416.97/16,804.78
6. Step 6: Final answer
   x = 12,765.80