Finding the Fourth Proportional to 15,983.07, 22,058.78 and 8,910.15

Step by Step Solution

1. Step 1: Write the proportion equation
   15,983.07 : 22,058.78 = 8,910.15 : x
2. Step 2: Convert to fraction form
   15,983.07/22,058.78 = 8,910.15/x
3. Step 3: Cross multiply
   15,983.07x = 22,058.78 × 8,910.15
4. Step 4: Simplify right side
   15,983.07x = 196,546,994.07
5. Step 5: Solve for x
   x = 196,546,994.07/15,983.07
6. Step 6: Final answer
   x = 12,297.20