Finding the Fourth Proportional to 11,929.38, 17,893.71 and 8,404.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,929.38 : 17,893.71 = 8,404.62 : x
2. Step 2: Convert to fraction form
   11,929.38/17,893.71 = 8,404.62/x
3. Step 3: Cross multiply
   11,929.38x = 17,893.71 × 8,404.62
4. Step 4: Simplify right side
   11,929.38x = 150,389,832.94
5. Step 5: Solve for x
   x = 150,389,832.94/11,929.38
6. Step 6: Final answer
   x = 12,606.68