Finding the Fourth Proportional to 23,929.86, 33,022.71 and 13,318.86

Step by Step Solution

1. Step 1: Write the proportion equation
   23,929.86 : 33,022.71 = 13,318.86 : x
2. Step 2: Convert to fraction form
   23,929.86/33,022.71 = 13,318.86/x
3. Step 3: Cross multiply
   23,929.86x = 33,022.71 × 13,318.86
4. Step 4: Simplify right side
   23,929.86x = 439,824,851.31
5. Step 5: Solve for x
   x = 439,824,851.31/23,929.86
6. Step 6: Final answer
   x = 18,379.75