Finding the Fourth Proportional to 12,819.84, 17,691.81 and 7,441.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,819.84 : 17,691.81 = 7,441.88 : x
2. Step 2: Convert to fraction form
   12,819.84/17,691.81 = 7,441.88/x
3. Step 3: Cross multiply
   12,819.84x = 17,691.81 × 7,441.88
4. Step 4: Simplify right side
   12,819.84x = 131,660,238.54
5. Step 5: Solve for x
   x = 131,660,238.54/12,819.84
6. Step 6: Final answer
   x = 10,270.04