Finding the Fourth Proportional to 12,243.36, 16,892.89 and 7,765.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,243.36 : 16,892.89 = 7,765.48 : x
2. Step 2: Convert to fraction form
   12,243.36/16,892.89 = 7,765.48/x
3. Step 3: Cross multiply
   12,243.36x = 16,892.89 × 7,765.48
4. Step 4: Simplify right side
   12,243.36x = 131,181,353.63
5. Step 5: Solve for x
   x = 131,181,353.63/12,243.36
6. Step 6: Final answer
   x = 10,714.49