Finding the Fourth Proportional to 13,383.31, 18,472.04 and 8,907.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,383.31 : 18,472.04 = 8,907.25 : x
2. Step 2: Convert to fraction form
   13,383.31/18,472.04 = 8,907.25/x
3. Step 3: Cross multiply
   13,383.31x = 18,472.04 × 8,907.25
4. Step 4: Simplify right side
   13,383.31x = 164,535,078.29
5. Step 5: Solve for x
   x = 164,535,078.29/13,383.31
6. Step 6: Final answer
   x = 12,294.05