Finding the Fourth Proportional to 23,915.94, 33,005.31 and 13,305.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,915.94 : 33,005.31 = 13,305.34 : x
2. Step 2: Convert to fraction form
   23,915.94/33,005.31 = 13,305.34/x
3. Step 3: Cross multiply
   23,915.94x = 33,005.31 × 13,305.34
4. Step 4: Simplify right side
   23,915.94x = 439,146,804.83
5. Step 5: Solve for x
   x = 439,146,804.83/23,915.94
6. Step 6: Final answer
   x = 18,362.10