Finding the Fourth Proportional to 9,140.36, 12,613.37 and 5,107.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,140.36 : 12,613.37 = 5,107.29 : x
2. Step 2: Convert to fraction form
   9,140.36/12,613.37 = 5,107.29/x
3. Step 3: Cross multiply
   9,140.36x = 12,613.37 × 5,107.29
4. Step 4: Simplify right side
   9,140.36x = 64,420,112.93
5. Step 5: Solve for x
   x = 64,420,112.93/9,140.36
6. Step 6: Final answer
   x = 7,047.88