Finding the Fourth Proportional to 7,969.82, 10,991.81 and 7,074.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,969.82 : 10,991.81 = 7,074.22 : x
2. Step 2: Convert to fraction form
   7,969.82/10,991.81 = 7,074.22/x
3. Step 3: Cross multiply
   7,969.82x = 10,991.81 × 7,074.22
4. Step 4: Simplify right side
   7,969.82x = 77,758,472.34
5. Step 5: Solve for x
   x = 77,758,472.34/7,969.82
6. Step 6: Final answer
   x = 9,756.61