Finding the Fourth Proportional to 12,819.33, 19,229.57 and 3,934.00

Step by Step Solution

1. Step 1: Write the proportion equation
   12,819.33 : 19,229.57 = 3,934.00 : x
2. Step 2: Convert to fraction form
   12,819.33/19,229.57 = 3,934.00/x
3. Step 3: Cross multiply
   12,819.33x = 19,229.57 × 3,934.00
4. Step 4: Simplify right side
   12,819.33x = 75,649,147.50
5. Step 5: Solve for x
   x = 75,649,147.50/12,819.33
6. Step 6: Final answer
   x = 5,901.18