Finding the Fourth Proportional to 8,140.90, 12,213.64 and 2,297.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,140.90 : 12,213.64 = 2,297.56 : x
2. Step 2: Convert to fraction form
   8,140.90/12,213.64 = 2,297.56/x
3. Step 3: Cross multiply
   8,140.90x = 12,213.64 × 2,297.56
4. Step 4: Simplify right side
   8,140.90x = 28,061,570.72
5. Step 5: Solve for x
   x = 28,061,570.72/8,140.90
6. Step 6: Final answer
   x = 3,446.99