Finding the Fourth Proportional to 8,819.82, 12,171.96 and 5,830.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,819.82 : 12,171.96 = 5,830.47 : x
2. Step 2: Convert to fraction form
   8,819.82/12,171.96 = 5,830.47/x
3. Step 3: Cross multiply
   8,819.82x = 12,171.96 × 5,830.47
4. Step 4: Simplify right side
   8,819.82x = 70,968,247.62
5. Step 5: Solve for x
   x = 70,968,247.62/8,819.82
6. Step 6: Final answer
   x = 8,046.45