Finding the Fourth Proportional to 23,915.69, 33,003.65 and 13,305.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,915.69 : 33,003.65 = 13,305.32 : x
2. Step 2: Convert to fraction form
   23,915.69/33,003.65 = 13,305.32/x
3. Step 3: Cross multiply
   23,915.69x = 33,003.65 × 13,305.32
4. Step 4: Simplify right side
   23,915.69x = 439,123,892.87
5. Step 5: Solve for x
   x = 439,123,892.87/23,915.69
6. Step 6: Final answer
   x = 18,361.33