Finding the Fourth Proportional to 12,917.34, 19,371.78 and 4,150.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,917.34 : 19,371.78 = 4,150.17 : x
2. Step 2: Convert to fraction form
   12,917.34/19,371.78 = 4,150.17/x
3. Step 3: Cross multiply
   12,917.34x = 19,371.78 × 4,150.17
4. Step 4: Simplify right side
   12,917.34x = 80,396,180.20
5. Step 5: Solve for x
   x = 80,396,180.20/12,917.34
6. Step 6: Final answer
   x = 6,223.90