Finding the Fourth Proportional to 15,981.82, 22,055.21 and 8,907.49

Step by Step Solution

1. Step 1: Write the proportion equation
   15,981.82 : 22,055.21 = 8,907.49 : x
2. Step 2: Convert to fraction form
   15,981.82/22,055.21 = 8,907.49/x
3. Step 3: Cross multiply
   15,981.82x = 22,055.21 × 8,907.49
4. Step 4: Simplify right side
   15,981.82x = 196,456,407.71
5. Step 5: Solve for x
   x = 196,456,407.71/15,981.82
6. Step 6: Final answer
   x = 12,292.49