Finding the Fourth Proportional to 16,586.42, 22,888.33 and 9,414.43

Step by Step Solution

1. Step 1: Write the proportion equation
   16,586.42 : 22,888.33 = 9,414.43 : x
2. Step 2: Convert to fraction form
   16,586.42/22,888.33 = 9,414.43/x
3. Step 3: Cross multiply
   16,586.42x = 22,888.33 × 9,414.43
4. Step 4: Simplify right side
   16,586.42x = 215,480,499.85
5. Step 5: Solve for x
   x = 215,480,499.85/16,586.42
6. Step 6: Final answer
   x = 12,991.38