Finding the Fourth Proportional to 12,705.14, 17,532.69 and 7,040.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,705.14 : 17,532.69 = 7,040.18 : x
2. Step 2: Convert to fraction form
   12,705.14/17,532.69 = 7,040.18/x
3. Step 3: Cross multiply
   12,705.14x = 17,532.69 × 7,040.18
4. Step 4: Simplify right side
   12,705.14x = 123,433,293.48
5. Step 5: Solve for x
   x = 123,433,293.48/12,705.14
6. Step 6: Final answer
   x = 9,715.22