Finding the Fourth Proportional to 16,728.48, 25,086.78 and 12,034.35

Step by Step Solution

1. Step 1: Write the proportion equation
   16,728.48 : 25,086.78 = 12,034.35 : x
2. Step 2: Convert to fraction form
   16,728.48/25,086.78 = 12,034.35/x
3. Step 3: Cross multiply
   16,728.48x = 25,086.78 × 12,034.35
4. Step 4: Simplify right side
   16,728.48x = 301,903,090.89
5. Step 5: Solve for x
   x = 301,903,090.89/16,728.48
6. Step 6: Final answer
   x = 18,047.25