Finding the Fourth Proportional to 8,819.46, 12,170.16 and 4,840.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,819.46 : 12,170.16 = 4,840.56 : x
2. Step 2: Convert to fraction form
   8,819.46/12,170.16 = 4,840.56/x
3. Step 3: Cross multiply
   8,819.46x = 12,170.16 × 4,840.56
4. Step 4: Simplify right side
   8,819.46x = 58,910,389.69
5. Step 5: Solve for x
   x = 58,910,389.69/8,819.46
6. Step 6: Final answer
   x = 6,679.59