Finding the Fourth Proportional to 8,100.22, 12,154.17 and 4,819.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,100.22 : 12,154.17 = 4,819.78 : x
2. Step 2: Convert to fraction form
   8,100.22/12,154.17 = 4,819.78/x
3. Step 3: Cross multiply
   8,100.22x = 12,154.17 × 4,819.78
4. Step 4: Simplify right side
   8,100.22x = 58,580,425.48
5. Step 5: Solve for x
   x = 58,580,425.48/8,100.22
6. Step 6: Final answer
   x = 7,231.95