Finding the Fourth Proportional to 9,243.18, 13,870.71 and 3,399.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,243.18 : 13,870.71 = 3,399.30 : x
2. Step 2: Convert to fraction form
   9,243.18/13,870.71 = 3,399.30/x
3. Step 3: Cross multiply
   9,243.18x = 13,870.71 × 3,399.30
4. Step 4: Simplify right side
   9,243.18x = 47,150,704.50
5. Step 5: Solve for x
   x = 47,150,704.50/9,243.18
6. Step 6: Final answer
   x = 5,101.13