Finding the Fourth Proportional to 10,983.48, 16,436.93 and 8,986.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,983.48 : 16,436.93 = 8,986.02 : x
2. Step 2: Convert to fraction form
   10,983.48/16,436.93 = 8,986.02/x
3. Step 3: Cross multiply
   10,983.48x = 16,436.93 × 8,986.02
4. Step 4: Simplify right side
   10,983.48x = 147,702,581.72
5. Step 5: Solve for x
   x = 147,702,581.72/10,983.48
6. Step 6: Final answer
   x = 13,447.70