Finding the Fourth Proportional to 13,084.49, 18,057.33 and 7,116.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,084.49 : 18,057.33 = 7,116.04 : x
2. Step 2: Convert to fraction form
   13,084.49/18,057.33 = 7,116.04/x
3. Step 3: Cross multiply
   13,084.49x = 18,057.33 × 7,116.04
4. Step 4: Simplify right side
   13,084.49x = 128,496,603.57
5. Step 5: Solve for x
   x = 128,496,603.57/13,084.49
6. Step 6: Final answer
   x = 9,820.53