Finding the Fourth Proportional to 6,809.39, 10,199.72 and 3,114.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,809.39 : 10,199.72 = 3,114.72 : x
2. Step 2: Convert to fraction form
   6,809.39/10,199.72 = 3,114.72/x
3. Step 3: Cross multiply
   6,809.39x = 10,199.72 × 3,114.72
4. Step 4: Simplify right side
   6,809.39x = 31,769,256.30
5. Step 5: Solve for x
   x = 31,769,256.30/6,809.39
6. Step 6: Final answer
   x = 4,665.51