Finding the Fourth Proportional to 16,236.06, 22,405.71 and 8,784.06

Step by Step Solution

1. Step 1: Write the proportion equation
   16,236.06 : 22,405.71 = 8,784.06 : x
2. Step 2: Convert to fraction form
   16,236.06/22,405.71 = 8,784.06/x
3. Step 3: Cross multiply
   16,236.06x = 22,405.71 × 8,784.06
4. Step 4: Simplify right side
   16,236.06x = 196,813,100.98
5. Step 5: Solve for x
   x = 196,813,100.98/16,236.06
6. Step 6: Final answer
   x = 12,121.97