Finding the Fourth Proportional to 16,052.43, 22,152.42 and 8,978.85

Step by Step Solution

1. Step 1: Write the proportion equation
   16,052.43 : 22,152.42 = 8,978.85 : x
2. Step 2: Convert to fraction form
   16,052.43/22,152.42 = 8,978.85/x
3. Step 3: Cross multiply
   16,052.43x = 22,152.42 × 8,978.85
4. Step 4: Simplify right side
   16,052.43x = 198,903,256.32
5. Step 5: Solve for x
   x = 198,903,256.32/16,052.43
6. Step 6: Final answer
   x = 12,390.85