Finding the Fourth Proportional to 16,089.86, 22,205.44 and 9,017.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,089.86 : 22,205.44 = 9,017.78 : x
2. Step 2: Convert to fraction form
   16,089.86/22,205.44 = 9,017.78/x
3. Step 3: Cross multiply
   16,089.86x = 22,205.44 × 9,017.78
4. Step 4: Simplify right side
   16,089.86x = 200,243,772.72
5. Step 5: Solve for x
   x = 200,243,772.72/16,089.86
6. Step 6: Final answer
   x = 12,445.34