Finding the Fourth Proportional to 22,040.79, 30,413.06 and 13,088.67

Step by Step Solution

1. Step 1: Write the proportion equation
   22,040.79 : 30,413.06 = 13,088.67 : x
2. Step 2: Convert to fraction form
   22,040.79/30,413.06 = 13,088.67/x
3. Step 3: Cross multiply
   22,040.79x = 30,413.06 × 13,088.67
4. Step 4: Simplify right side
   22,040.79x = 398,066,440.59
5. Step 5: Solve for x
   x = 398,066,440.59/22,040.79
6. Step 6: Final answer
   x = 18,060.44