Finding the Fourth Proportional to 13,513.94, 18,648.44 and 7,545.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,513.94 : 18,648.44 = 7,545.98 : x
2. Step 2: Convert to fraction form
   13,513.94/18,648.44 = 7,545.98/x
3. Step 3: Cross multiply
   13,513.94x = 18,648.44 × 7,545.98
4. Step 4: Simplify right side
   13,513.94x = 140,720,792.46
5. Step 5: Solve for x
   x = 140,720,792.46/13,513.94
6. Step 6: Final answer
   x = 10,413.01