Finding the Fourth Proportional to 8,234.89, 12,343.47 and 3,557.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,234.89 : 12,343.47 = 3,557.10 : x
2. Step 2: Convert to fraction form
   8,234.89/12,343.47 = 3,557.10/x
3. Step 3: Cross multiply
   8,234.89x = 12,343.47 × 3,557.10
4. Step 4: Simplify right side
   8,234.89x = 43,906,957.14
5. Step 5: Solve for x
   x = 43,906,957.14/8,234.89
6. Step 6: Final answer
   x = 5,331.82