Finding the Fourth Proportional to 13,018.89, 17,966.15 and 7,050.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,018.89 : 17,966.15 = 7,050.61 : x
2. Step 2: Convert to fraction form
   13,018.89/17,966.15 = 7,050.61/x
3. Step 3: Cross multiply
   13,018.89x = 17,966.15 × 7,050.61
4. Step 4: Simplify right side
   13,018.89x = 126,672,316.85
5. Step 5: Solve for x
   x = 126,672,316.85/13,018.89
6. Step 6: Final answer
   x = 9,729.89