Finding the Fourth Proportional to 16,052.89, 22,154.06 and 8,978.89

Step by Step Solution

1. Step 1: Write the proportion equation
   16,052.89 : 22,154.06 = 8,978.89 : x
2. Step 2: Convert to fraction form
   16,052.89/22,154.06 = 8,978.89/x
3. Step 3: Cross multiply
   16,052.89x = 22,154.06 × 8,978.89
4. Step 4: Simplify right side
   16,052.89x = 198,918,867.79
5. Step 5: Solve for x
   x = 198,918,867.79/16,052.89
6. Step 6: Final answer
   x = 12,391.47