Finding the Fourth Proportional to 7,091.16, 9,783.15 and 7,080.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,091.16 : 9,783.15 = 7,080.22 : x
2. Step 2: Convert to fraction form
   7,091.16/9,783.15 = 7,080.22/x
3. Step 3: Cross multiply
   7,091.16x = 9,783.15 × 7,080.22
4. Step 4: Simplify right side
   7,091.16x = 69,266,854.29
5. Step 5: Solve for x
   x = 69,266,854.29/7,091.16
6. Step 6: Final answer
   x = 9,768.06