Finding the Fourth Proportional to 9,407.27, 12,982.12 and 5,158.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,407.27 : 12,982.12 = 5,158.37 : x
2. Step 2: Convert to fraction form
   9,407.27/12,982.12 = 5,158.37/x
3. Step 3: Cross multiply
   9,407.27x = 12,982.12 × 5,158.37
4. Step 4: Simplify right side
   9,407.27x = 66,966,597.90
5. Step 5: Solve for x
   x = 66,966,597.90/9,407.27
6. Step 6: Final answer
   x = 7,118.60