Finding the Fourth Proportional to 7,839.08, 10,804.74 and 5,039.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,839.08 : 10,804.74 = 5,039.72 : x
2. Step 2: Convert to fraction form
   7,839.08/10,804.74 = 5,039.72/x
3. Step 3: Cross multiply
   7,839.08x = 10,804.74 × 5,039.72
4. Step 4: Simplify right side
   7,839.08x = 54,452,864.27
5. Step 5: Solve for x
   x = 54,452,864.27/7,839.08
6. Step 6: Final answer
   x = 6,946.33