Finding the Fourth Proportional to 12,713.20, 19,073.46 and 3,948.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,713.20 : 19,073.46 = 3,948.16 : x
2. Step 2: Convert to fraction form
   12,713.20/19,073.46 = 3,948.16/x
3. Step 3: Cross multiply
   12,713.20x = 19,073.46 × 3,948.16
4. Step 4: Simplify right side
   12,713.20x = 75,305,071.83
5. Step 5: Solve for x
   x = 75,305,071.83/12,713.20
6. Step 6: Final answer
   x = 5,923.38