Finding the Fourth Proportional to 10,772.52, 16,145.34 and 3,839.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,772.52 : 16,145.34 = 3,839.40 : x
2. Step 2: Convert to fraction form
   10,772.52/16,145.34 = 3,839.40/x
3. Step 3: Cross multiply
   10,772.52x = 16,145.34 × 3,839.40
4. Step 4: Simplify right side
   10,772.52x = 61,988,418.40
5. Step 5: Solve for x
   x = 61,988,418.40/10,772.52
6. Step 6: Final answer
   x = 5,754.31