Finding the Fourth Proportional to 12,770.43, 19,149.55 and 4,449.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,770.43 : 19,149.55 = 4,449.42 : x
2. Step 2: Convert to fraction form
   12,770.43/19,149.55 = 4,449.42/x
3. Step 3: Cross multiply
   12,770.43x = 19,149.55 × 4,449.42
4. Step 4: Simplify right side
   12,770.43x = 85,204,390.76
5. Step 5: Solve for x
   x = 85,204,390.76/12,770.43
6. Step 6: Final answer
   x = 6,672.01