Finding the Fourth Proportional to 16,420.42, 24,619.38 and 5,890.21

Step by Step Solution

1. Step 1: Write the proportion equation
   16,420.42 : 24,619.38 = 5,890.21 : x
2. Step 2: Convert to fraction form
   16,420.42/24,619.38 = 5,890.21/x
3. Step 3: Cross multiply
   16,420.42x = 24,619.38 × 5,890.21
4. Step 4: Simplify right side
   16,420.42x = 145,013,318.27
5. Step 5: Solve for x
   x = 145,013,318.27/16,420.42
6. Step 6: Final answer
   x = 8,831.28