Finding the Fourth Proportional to 13,018.59, 17,965.56 and 7,050.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,018.59 : 17,965.56 = 7,050.12 : x
2. Step 2: Convert to fraction form
   13,018.59/17,965.56 = 7,050.12/x
3. Step 3: Cross multiply
   13,018.59x = 17,965.56 × 7,050.12
4. Step 4: Simplify right side
   13,018.59x = 126,659,416.41
5. Step 5: Solve for x
   x = 126,659,416.41/13,018.59
6. Step 6: Final answer
   x = 9,729.12