Finding the Fourth Proportional to 9,104.31, 13,661.78 and 3,839

Step by Step Solution

1. Step 1: Write the proportion equation
   9,104.31 : 13,661.78 = 3,839 : x
2. Step 2: Convert to fraction form
   9,104.31/13,661.78 = 3,839/x
3. Step 3: Cross multiply
   9,104.31x = 13,661.78 × 3,839
4. Step 4: Simplify right side
   9,104.31x = 52,447,573.42
5. Step 5: Solve for x
   x = 52,447,573.42/9,104.31
6. Step 6: Final answer
   x = 5,760.74