Finding the Fourth Proportional to 8,157.30, 12,233.31 and 2,312.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,157.30 : 12,233.31 = 2,312.34 : x
2. Step 2: Convert to fraction form
   8,157.30/12,233.31 = 2,312.34/x
3. Step 3: Cross multiply
   8,157.30x = 12,233.31 × 2,312.34
4. Step 4: Simplify right side
   8,157.30x = 28,287,572.05
5. Step 5: Solve for x
   x = 28,287,572.05/8,157.30
6. Step 6: Final answer
   x = 3,467.76