Finding the Fourth Proportional to 13,063.49, 18,028.04 and 7,398.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,063.49 : 18,028.04 = 7,398.15 : x
2. Step 2: Convert to fraction form
   13,063.49/18,028.04 = 7,398.15/x
3. Step 3: Cross multiply
   13,063.49x = 18,028.04 × 7,398.15
4. Step 4: Simplify right side
   13,063.49x = 133,374,144.13
5. Step 5: Solve for x
   x = 133,374,144.13/13,063.49
6. Step 6: Final answer
   x = 10,209.69