Finding the Fourth Proportional to 16,586.18, 22,888.69 and 9,416.03

Step by Step Solution

1. Step 1: Write the proportion equation
   16,586.18 : 22,888.69 = 9,416.03 : x
2. Step 2: Convert to fraction form
   16,586.18/22,888.69 = 9,416.03/x
3. Step 3: Cross multiply
   16,586.18x = 22,888.69 × 9,416.03
4. Step 4: Simplify right side
   16,586.18x = 215,520,430.18
5. Step 5: Solve for x
   x = 215,520,430.18/16,586.18
6. Step 6: Final answer
   x = 12,993.98