Finding the Fourth Proportional to 13,053.97, 18,014.29 and 7,085.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,053.97 : 18,014.29 = 7,085.49 : x
2. Step 2: Convert to fraction form
   13,053.97/18,014.29 = 7,085.49/x
3. Step 3: Cross multiply
   13,053.97x = 18,014.29 × 7,085.49
4. Step 4: Simplify right side
   13,053.97x = 127,640,071.65
5. Step 5: Solve for x
   x = 127,640,071.65/13,053.97
6. Step 6: Final answer
   x = 9,777.87