Finding the Fourth Proportional to 15,925.89, 21,972.05 and 10,949.25

Step by Step Solution

1. Step 1: Write the proportion equation
   15,925.89 : 21,972.05 = 10,949.25 : x
2. Step 2: Convert to fraction form
   15,925.89/21,972.05 = 10,949.25/x
3. Step 3: Cross multiply
   15,925.89x = 21,972.05 × 10,949.25
4. Step 4: Simplify right side
   15,925.89x = 240,577,413.72
5. Step 5: Solve for x
   x = 240,577,413.72/15,925.89
6. Step 6: Final answer
   x = 15,106.06