Finding the Fourth Proportional to 13,018.56, 17,965.53 and 7,050.17

Step by Step Solution

1. Step 1: Write the proportion equation
   13,018.56 : 17,965.53 = 7,050.17 : x
2. Step 2: Convert to fraction form
   13,018.56/17,965.53 = 7,050.17/x
3. Step 3: Cross multiply
   13,018.56x = 17,965.53 × 7,050.17
4. Step 4: Simplify right side
   13,018.56x = 126,660,085.55
5. Step 5: Solve for x
   x = 126,660,085.55/13,018.56
6. Step 6: Final answer
   x = 9,729.20