Finding the Fourth Proportional to 22,049.84, 30,428.70 and 12,618.38

Step by Step Solution

1. Step 1: Write the proportion equation
   22,049.84 : 30,428.70 = 12,618.38 : x
2. Step 2: Convert to fraction form
   22,049.84/30,428.70 = 12,618.38/x
3. Step 3: Cross multiply
   22,049.84x = 30,428.70 × 12,618.38
4. Step 4: Simplify right side
   22,049.84x = 383,960,899.51
5. Step 5: Solve for x
   x = 383,960,899.51/22,049.84
6. Step 6: Final answer
   x = 17,413.32