Finding the Fourth Proportional to 12,678.82, 17,496.67 and 7,089.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,678.82 : 17,496.67 = 7,089.82 : x
2. Step 2: Convert to fraction form
   12,678.82/17,496.67 = 7,089.82/x
3. Step 3: Cross multiply
   12,678.82x = 17,496.67 × 7,089.82
4. Step 4: Simplify right side
   12,678.82x = 124,048,240.90
5. Step 5: Solve for x
   x = 124,048,240.90/12,678.82
6. Step 6: Final answer
   x = 9,783.89