Finding the Fourth Proportional to 12,708.43, 19,062.34 and 4,388.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,708.43 : 19,062.34 = 4,388.15 : x
2. Step 2: Convert to fraction form
   12,708.43/19,062.34 = 4,388.15/x
3. Step 3: Cross multiply
   12,708.43x = 19,062.34 × 4,388.15
4. Step 4: Simplify right side
   12,708.43x = 83,648,443.96
5. Step 5: Solve for x
   x = 83,648,443.96/12,708.43
6. Step 6: Final answer
   x = 6,582.12