Finding the Fourth Proportional to 12,158.43, 18,235 and 3,273.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,158.43 : 18,235 = 3,273.54 : x
2. Step 2: Convert to fraction form
   12,158.43/18,235 = 3,273.54/x
3. Step 3: Cross multiply
   12,158.43x = 18,235 × 3,273.54
4. Step 4: Simplify right side
   12,158.43x = 59,693,001.90
5. Step 5: Solve for x
   x = 59,693,001.90/12,158.43
6. Step 6: Final answer
   x = 4,909.60