Finding the Fourth Proportional to 6,117, 8,443.38 and 3,909

Step by Step Solution

1. Step 1: Write the proportion equation
   6,117 : 8,443.38 = 3,909 : x
2. Step 2: Convert to fraction form
   6,117/8,443.38 = 3,909/x
3. Step 3: Cross multiply
   6,117x = 8,443.38 × 3,909
4. Step 4: Simplify right side
   6,117x = 33,005,172.42
5. Step 5: Solve for x
   x = 33,005,172.42/6,117
6. Step 6: Final answer
   x = 5,395.65