Finding the Fourth Proportional to 12,584.88, 18,877.43 and 3,819.79

Step by Step Solution

1. Step 1: Write the proportion equation
   12,584.88 : 18,877.43 = 3,819.79 : x
2. Step 2: Convert to fraction form
   12,584.88/18,877.43 = 3,819.79/x
3. Step 3: Cross multiply
   12,584.88x = 18,877.43 × 3,819.79
4. Step 4: Simplify right side
   12,584.88x = 72,107,818.34
5. Step 5: Solve for x
   x = 72,107,818.34/12,584.88
6. Step 6: Final answer
   x = 5,729.72