Finding the Fourth Proportional to 12,287.27, 18,413.29 and 7,011.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,287.27 : 18,413.29 = 7,011.34 : x
2. Step 2: Convert to fraction form
   12,287.27/18,413.29 = 7,011.34/x
3. Step 3: Cross multiply
   12,287.27x = 18,413.29 × 7,011.34
4. Step 4: Simplify right side
   12,287.27x = 129,101,836.71
5. Step 5: Solve for x
   x = 129,101,836.71/12,287.27
6. Step 6: Final answer
   x = 10,506.96