Finding the Fourth Proportional to 10,914.72, 16,361.92 and 3,984

Step by Step Solution

1. Step 1: Write the proportion equation
   10,914.72 : 16,361.92 = 3,984 : x
2. Step 2: Convert to fraction form
   10,914.72/16,361.92 = 3,984/x
3. Step 3: Cross multiply
   10,914.72x = 16,361.92 × 3,984
4. Step 4: Simplify right side
   10,914.72x = 65,185,889.28
5. Step 5: Solve for x
   x = 65,185,889.28/10,914.72
6. Step 6: Final answer
   x = 5,972.29