Finding the Fourth Proportional to 8,998.22, 12,414.20 and 5,219.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,998.22 : 12,414.20 = 5,219.27 : x
2. Step 2: Convert to fraction form
   8,998.22/12,414.20 = 5,219.27/x
3. Step 3: Cross multiply
   8,998.22x = 12,414.20 × 5,219.27
4. Step 4: Simplify right side
   8,998.22x = 64,792,973.47
5. Step 5: Solve for x
   x = 64,792,973.47/8,998.22
6. Step 6: Final answer
   x = 7,200.65