Finding the Fourth Proportional to 7,162.12, 9,883.88 and 4,178.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,162.12 : 9,883.88 = 4,178.15 : x
2. Step 2: Convert to fraction form
   7,162.12/9,883.88 = 4,178.15/x
3. Step 3: Cross multiply
   7,162.12x = 9,883.88 × 4,178.15
4. Step 4: Simplify right side
   7,162.12x = 41,296,380.73
5. Step 5: Solve for x
   x = 41,296,380.73/7,162.12
6. Step 6: Final answer
   x = 5,765.94