Finding the Fourth Proportional to 11,784.69, 16,245.77 and 8,236.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,784.69 : 16,245.77 = 8,236.89 : x
2. Step 2: Convert to fraction form
   11,784.69/16,245.77 = 8,236.89/x
3. Step 3: Cross multiply
   11,784.69x = 16,245.77 × 8,236.89
4. Step 4: Simplify right side
   11,784.69x = 133,814,579.27
5. Step 5: Solve for x
   x = 133,814,579.27/11,784.69
6. Step 6: Final answer
   x = 11,354.95