Finding the Fourth Proportional to 16,058.52, 22,160.78 and 8,985.08

Step by Step Solution

1. Step 1: Write the proportion equation
   16,058.52 : 22,160.78 = 8,985.08 : x
2. Step 2: Convert to fraction form
   16,058.52/22,160.78 = 8,985.08/x
3. Step 3: Cross multiply
   16,058.52x = 22,160.78 × 8,985.08
4. Step 4: Simplify right side
   16,058.52x = 199,116,381.16
5. Step 5: Solve for x
   x = 199,116,381.16/16,058.52
6. Step 6: Final answer
   x = 12,399.42