Finding the Fourth Proportional to 23,999.51, 33,119.33 and 13,388.91

Step by Step Solution

1. Step 1: Write the proportion equation
   23,999.51 : 33,119.33 = 13,388.91 : x
2. Step 2: Convert to fraction form
   23,999.51/33,119.33 = 13,388.91/x
3. Step 3: Cross multiply
   23,999.51x = 33,119.33 × 13,388.91
4. Step 4: Simplify right side
   23,999.51x = 443,431,661.69
5. Step 5: Solve for x
   x = 443,431,661.69/23,999.51
6. Step 6: Final answer
   x = 18,476.70