Finding the Fourth Proportional to 13,179.81, 19,770.73 and 3,819.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,179.81 : 19,770.73 = 3,819.96 : x
2. Step 2: Convert to fraction form
   13,179.81/19,770.73 = 3,819.96/x
3. Step 3: Cross multiply
   13,179.81x = 19,770.73 × 3,819.96
4. Step 4: Simplify right side
   13,179.81x = 75,523,357.89
5. Step 5: Solve for x
   x = 75,523,357.89/13,179.81
6. Step 6: Final answer
   x = 5,730.23