Finding the Fourth Proportional to 13,018.75, 17,974.52 and 8,059.39

Step by Step Solution

1. Step 1: Write the proportion equation
   13,018.75 : 17,974.52 = 8,059.39 : x
2. Step 2: Convert to fraction form
   13,018.75/17,974.52 = 8,059.39/x
3. Step 3: Cross multiply
   13,018.75x = 17,974.52 × 8,059.39
4. Step 4: Simplify right side
   13,018.75x = 144,863,666.74
5. Step 5: Solve for x
   x = 144,863,666.74/13,018.75
6. Step 6: Final answer
   x = 11,127.31