Finding the Fourth Proportional to 23,991.19, 33,105.71 and 13,380.59

Step by Step Solution

1. Step 1: Write the proportion equation
   23,991.19 : 33,105.71 = 13,380.59 : x
2. Step 2: Convert to fraction form
   23,991.19/33,105.71 = 13,380.59/x
3. Step 3: Cross multiply
   23,991.19x = 33,105.71 × 13,380.59
4. Step 4: Simplify right side
   23,991.19x = 442,974,048.38
5. Step 5: Solve for x
   x = 442,974,048.38/23,991.19
6. Step 6: Final answer
   x = 18,464.03