Finding the Fourth Proportional to 12,690.37, 17,495.93 and 10,413.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,690.37 : 17,495.93 = 10,413.37 : x
2. Step 2: Convert to fraction form
   12,690.37/17,495.93 = 10,413.37/x
3. Step 3: Cross multiply
   12,690.37x = 17,495.93 × 10,413.37
4. Step 4: Simplify right side
   12,690.37x = 182,191,453.04
5. Step 5: Solve for x
   x = 182,191,453.04/12,690.37
6. Step 6: Final answer
   x = 14,356.68