Finding the Fourth Proportional to 23,915.37, 33,003.09 and 13,305

Step by Step Solution

1. Step 1: Write the proportion equation
   23,915.37 : 33,003.09 = 13,305 : x
2. Step 2: Convert to fraction form
   23,915.37/33,003.09 = 13,305/x
3. Step 3: Cross multiply
   23,915.37x = 33,003.09 × 13,305
4. Step 4: Simplify right side
   23,915.37x = 439,106,112.45
5. Step 5: Solve for x
   x = 439,106,112.45/23,915.37
6. Step 6: Final answer
   x = 18,360.83