Finding the Fourth Proportional to 12,413.98, 18,620.93 and 5,018.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,413.98 : 18,620.93 = 5,018.36 : x
2. Step 2: Convert to fraction form
   12,413.98/18,620.93 = 5,018.36/x
3. Step 3: Cross multiply
   12,413.98x = 18,620.93 × 5,018.36
4. Step 4: Simplify right side
   12,413.98x = 93,446,449.72
5. Step 5: Solve for x
   x = 93,446,449.72/12,413.98
6. Step 6: Final answer
   x = 7,527.52