Finding the Fourth Proportional to 12,018.57, 16,585.59 and 6,713.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,018.57 : 16,585.59 = 6,713.34 : x
2. Step 2: Convert to fraction form
   12,018.57/16,585.59 = 6,713.34/x
3. Step 3: Cross multiply
   12,018.57x = 16,585.59 × 6,713.34
4. Step 4: Simplify right side
   12,018.57x = 111,344,704.77
5. Step 5: Solve for x
   x = 111,344,704.77/12,018.57
6. Step 6: Final answer
   x = 9,264.39