Finding the Fourth Proportional to 16,052.28, 22,151.82 and 8,978.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,052.28 : 22,151.82 = 8,978.76 : x
2. Step 2: Convert to fraction form
   16,052.28/22,151.82 = 8,978.76/x
3. Step 3: Cross multiply
   16,052.28x = 22,151.82 × 8,978.76
4. Step 4: Simplify right side
   16,052.28x = 198,895,875.34
5. Step 5: Solve for x
   x = 198,895,875.34/16,052.28
6. Step 6: Final answer
   x = 12,390.51