Finding the Fourth Proportional to 9,863.88, 14,796.72 and 3,939.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,863.88 : 14,796.72 = 3,939.32 : x
2. Step 2: Convert to fraction form
   9,863.88/14,796.72 = 3,939.32/x
3. Step 3: Cross multiply
   9,863.88x = 14,796.72 × 3,939.32
4. Step 4: Simplify right side
   9,863.88x = 58,289,015.03
5. Step 5: Solve for x
   x = 58,289,015.03/9,863.88
6. Step 6: Final answer
   x = 5,909.34