Finding the Fourth Proportional to 9,729.18, 14,604.57 and 3,889.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,729.18 : 14,604.57 = 3,889.89 : x
2. Step 2: Convert to fraction form
   9,729.18/14,604.57 = 3,889.89/x
3. Step 3: Cross multiply
   9,729.18x = 14,604.57 × 3,889.89
4. Step 4: Simplify right side
   9,729.18x = 56,810,170.80
5. Step 5: Solve for x
   x = 56,810,170.80/9,729.18
6. Step 6: Final answer
   x = 5,839.15