Finding the Fourth Proportional to 12,724.48, 19,062.42 and 8,333.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,724.48 : 19,062.42 = 8,333.20 : x
2. Step 2: Convert to fraction form
   12,724.48/19,062.42 = 8,333.20/x
3. Step 3: Cross multiply
   12,724.48x = 19,062.42 × 8,333.20
4. Step 4: Simplify right side
   12,724.48x = 158,850,958.34
5. Step 5: Solve for x
   x = 158,850,958.34/12,724.48
6. Step 6: Final answer
   x = 12,483.89