Finding the Fourth Proportional to 13,578.16, 18,737.83 and 7,609.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,578.16 : 18,737.83 = 7,609.82 : x
2. Step 2: Convert to fraction form
   13,578.16/18,737.83 = 7,609.82/x
3. Step 3: Cross multiply
   13,578.16x = 18,737.83 × 7,609.82
4. Step 4: Simplify right side
   13,578.16x = 142,591,587.41
5. Step 5: Solve for x
   x = 142,591,587.41/13,578.16
6. Step 6: Final answer
   x = 10,501.54