Finding the Fourth Proportional to 9,310.34, 12,849.05 and 5,119.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,310.34 : 12,849.05 = 5,119.38 : x
2. Step 2: Convert to fraction form
   9,310.34/12,849.05 = 5,119.38/x
3. Step 3: Cross multiply
   9,310.34x = 12,849.05 × 5,119.38
4. Step 4: Simplify right side
   9,310.34x = 65,779,169.59
5. Step 5: Solve for x
   x = 65,779,169.59/9,310.34
6. Step 6: Final answer
   x = 7,065.17