Finding the Fourth Proportional to 16,035.40, 22,128.80 and 8,961.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,035.40 : 22,128.80 = 8,961.82 : x
2. Step 2: Convert to fraction form
   16,035.40/22,128.80 = 8,961.82/x
3. Step 3: Cross multiply
   16,035.40x = 22,128.80 × 8,961.82
4. Step 4: Simplify right side
   16,035.40x = 198,314,322.42
5. Step 5: Solve for x
   x = 198,314,322.42/16,035.40
6. Step 6: Final answer
   x = 12,367.28