Finding the Fourth Proportional to 23,926.69, 33,026.09 and 13,857.61

Step by Step Solution

1. Step 1: Write the proportion equation
   23,926.69 : 33,026.09 = 13,857.61 : x
2. Step 2: Convert to fraction form
   23,926.69/33,026.09 = 13,857.61/x
3. Step 3: Cross multiply
   23,926.69x = 33,026.09 × 13,857.61
4. Step 4: Simplify right side
   23,926.69x = 457,662,589.67
5. Step 5: Solve for x
   x = 457,662,589.67/23,926.69
6. Step 6: Final answer
   x = 19,127.70