Finding the Fourth Proportional to 8,680.14, 13,018.56 and 4,233.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,680.14 : 13,018.56 = 4,233.34 : x
2. Step 2: Convert to fraction form
   8,680.14/13,018.56 = 4,233.34/x
3. Step 3: Cross multiply
   8,680.14x = 13,018.56 × 4,233.34
4. Step 4: Simplify right side
   8,680.14x = 55,111,990.79
5. Step 5: Solve for x
   x = 55,111,990.79/8,680.14
6. Step 6: Final answer
   x = 6,349.21