Finding the Fourth Proportional to 22,176.50, 30,603.57 and 12,240.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,176.50 : 30,603.57 = 12,240.50 : x
2. Step 2: Convert to fraction form
   22,176.50/30,603.57 = 12,240.50/x
3. Step 3: Cross multiply
   22,176.50x = 30,603.57 × 12,240.50
4. Step 4: Simplify right side
   22,176.50x = 374,602,998.59
5. Step 5: Solve for x
   x = 374,602,998.59/22,176.50
6. Step 6: Final answer
   x = 16,891.89