Finding the Fourth Proportional to 13,008.45, 17,951.69 and 7,040.17

Step by Step Solution

1. Step 1: Write the proportion equation
   13,008.45 : 17,951.69 = 7,040.17 : x
2. Step 2: Convert to fraction form
   13,008.45/17,951.69 = 7,040.17/x
3. Step 3: Cross multiply
   13,008.45x = 17,951.69 × 7,040.17
4. Step 4: Simplify right side
   13,008.45x = 126,382,914.19
5. Step 5: Solve for x
   x = 126,382,914.19/13,008.45
6. Step 6: Final answer
   x = 9,715.45