Finding the Fourth Proportional to 7,109.97, 9,790.25 and 5,613.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,109.97 : 9,790.25 = 5,613.09 : x
2. Step 2: Convert to fraction form
   7,109.97/9,790.25 = 5,613.09/x
3. Step 3: Cross multiply
   7,109.97x = 9,790.25 × 5,613.09
4. Step 4: Simplify right side
   7,109.97x = 54,953,526.31
5. Step 5: Solve for x
   x = 54,953,526.31/7,109.97
6. Step 6: Final answer
   x = 7,729.08