Finding the Fourth Proportional to 31,413.51, 43,352.73 and 17,986.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,413.51 : 43,352.73 = 17,986.59 : x
2. Step 2: Convert to fraction form
   31,413.51/43,352.73 = 17,986.59/x
3. Step 3: Cross multiply
   31,413.51x = 43,352.73 × 17,986.59
4. Step 4: Simplify right side
   31,413.51x = 779,767,779.89
5. Step 5: Solve for x
   x = 779,767,779.89/31,413.51
6. Step 6: Final answer
   x = 24,822.69