Finding the Fourth Proportional to 12,406.62, 17,119.20 and 7,370.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,406.62 : 17,119.20 = 7,370.71 : x
2. Step 2: Convert to fraction form
   12,406.62/17,119.20 = 7,370.71/x
3. Step 3: Cross multiply
   12,406.62x = 17,119.20 × 7,370.71
4. Step 4: Simplify right side
   12,406.62x = 126,180,591.46
5. Step 5: Solve for x
   x = 126,180,591.46/12,406.62
6. Step 6: Final answer
   x = 10,170.43