Finding the Fourth Proportional to 16,784.18, 23,161.67 and 9,230.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,784.18 : 23,161.67 = 9,230.50 : x
2. Step 2: Convert to fraction form
   16,784.18/23,161.67 = 9,230.50/x
3. Step 3: Cross multiply
   16,784.18x = 23,161.67 × 9,230.50
4. Step 4: Simplify right side
   16,784.18x = 213,793,794.94
5. Step 5: Solve for x
   x = 213,793,794.94/16,784.18
6. Step 6: Final answer
   x = 12,737.82