Finding the Fourth Proportional to 7,078.67, 9,764.22 and 5,091.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,078.67 : 9,764.22 = 5,091.89 : x
2. Step 2: Convert to fraction form
   7,078.67/9,764.22 = 5,091.89/x
3. Step 3: Cross multiply
   7,078.67x = 9,764.22 × 5,091.89
4. Step 4: Simplify right side
   7,078.67x = 49,718,334.18
5. Step 5: Solve for x
   x = 49,718,334.18/7,078.67
6. Step 6: Final answer
   x = 7,023.68