Finding the Fourth Proportional to 9,281.99, 12,810.76 and 7,040.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,281.99 : 12,810.76 = 7,040.12 : x
2. Step 2: Convert to fraction form
   9,281.99/12,810.76 = 7,040.12/x
3. Step 3: Cross multiply
   9,281.99x = 12,810.76 × 7,040.12
4. Step 4: Simplify right side
   9,281.99x = 90,189,206.04
5. Step 5: Solve for x
   x = 90,189,206.04/9,281.99
6. Step 6: Final answer
   x = 9,716.58