Finding the Fourth Proportional to 8,290.14, 12,433.59 and 2,445.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,290.14 : 12,433.59 = 2,445.45 : x
2. Step 2: Convert to fraction form
   8,290.14/12,433.59 = 2,445.45/x
3. Step 3: Cross multiply
   8,290.14x = 12,433.59 × 2,445.45
4. Step 4: Simplify right side
   8,290.14x = 30,405,722.67
5. Step 5: Solve for x
   x = 30,405,722.67/8,290.14
6. Step 6: Final answer
   x = 3,667.70