Finding the Fourth Proportional to 12,058.56, 16,644.15 and 7,866

Step by Step Solution

1. Step 1: Write the proportion equation
   12,058.56 : 16,644.15 = 7,866 : x
2. Step 2: Convert to fraction form
   12,058.56/16,644.15 = 7,866/x
3. Step 3: Cross multiply
   12,058.56x = 16,644.15 × 7,866
4. Step 4: Simplify right side
   12,058.56x = 130,922,883.90
5. Step 5: Solve for x
   x = 130,922,883.90/12,058.56
6. Step 6: Final answer
   x = 10,857.26