Finding the Fourth Proportional to 12,930.83, 19,395.86 and 3,571.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,930.83 : 19,395.86 = 3,571.42 : x
2. Step 2: Convert to fraction form
   12,930.83/19,395.86 = 3,571.42/x
3. Step 3: Cross multiply
   12,930.83x = 19,395.86 × 3,571.42
4. Step 4: Simplify right side
   12,930.83x = 69,270,762.32
5. Step 5: Solve for x
   x = 69,270,762.32/12,930.83
6. Step 6: Final answer
   x = 5,357.02