Finding the Fourth Proportional to 15,413.97, 23,094.42 and 10,405.31

Step by Step Solution

1. Step 1: Write the proportion equation
   15,413.97 : 23,094.42 = 10,405.31 : x
2. Step 2: Convert to fraction form
   15,413.97/23,094.42 = 10,405.31/x
3. Step 3: Cross multiply
   15,413.97x = 23,094.42 × 10,405.31
4. Step 4: Simplify right side
   15,413.97x = 240,304,599.37
5. Step 5: Solve for x
   x = 240,304,599.37/15,413.97
6. Step 6: Final answer
   x = 15,590.05