Finding the Fourth Proportional to 8,210.34, 12,312.33 and 2,662.35

Step by Step Solution

1. Step 1: Write the proportion equation
   8,210.34 : 12,312.33 = 2,662.35 : x
2. Step 2: Convert to fraction form
   8,210.34/12,312.33 = 2,662.35/x
3. Step 3: Cross multiply
   8,210.34x = 12,312.33 × 2,662.35
4. Step 4: Simplify right side
   8,210.34x = 32,779,731.78
5. Step 5: Solve for x
   x = 32,779,731.78/8,210.34
6. Step 6: Final answer
   x = 3,992.49