Finding the Fourth Proportional to 8,143.23, 12,215.91 and 2,300.00

Step by Step Solution

1. Step 1: Write the proportion equation
   8,143.23 : 12,215.91 = 2,300.00 : x
2. Step 2: Convert to fraction form
   8,143.23/12,215.91 = 2,300.00/x
3. Step 3: Cross multiply
   8,143.23x = 12,215.91 × 2,300.00
4. Step 4: Simplify right side
   8,143.23x = 28,096,540.55
5. Step 5: Solve for x
   x = 28,096,540.55/8,143.23
6. Step 6: Final answer
   x = 3,450.29