Finding the Fourth Proportional to 6,830.38, 10,243.95 and 3,130.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,830.38 : 10,243.95 = 3,130.30 : x
2. Step 2: Convert to fraction form
   6,830.38/10,243.95 = 3,130.30/x
3. Step 3: Cross multiply
   6,830.38x = 10,243.95 × 3,130.30
4. Step 4: Simplify right side
   6,830.38x = 32,066,636.69
5. Step 5: Solve for x
   x = 32,066,636.69/6,830.38
6. Step 6: Final answer
   x = 4,694.71