Finding the Fourth Proportional to 8,957.22, 12,359.98 and 5,179.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,957.22 : 12,359.98 = 5,179.82 : x
2. Step 2: Convert to fraction form
   8,957.22/12,359.98 = 5,179.82/x
3. Step 3: Cross multiply
   8,957.22x = 12,359.98 × 5,179.82
4. Step 4: Simplify right side
   8,957.22x = 64,022,471.60
5. Step 5: Solve for x
   x = 64,022,471.60/8,957.22
6. Step 6: Final answer
   x = 7,147.58