Finding the Fourth Proportional to 8,118.12, 12,160.94 and 3,729.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,118.12 : 12,160.94 = 3,729.56 : x
2. Step 2: Convert to fraction form
   8,118.12/12,160.94 = 3,729.56/x
3. Step 3: Cross multiply
   8,118.12x = 12,160.94 × 3,729.56
4. Step 4: Simplify right side
   8,118.12x = 45,354,955.39
5. Step 5: Solve for x
   x = 45,354,955.39/8,118.12
6. Step 6: Final answer
   x = 5,586.88