Finding the Fourth Proportional to 8,273.48, 12,405.90 and 3,076.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,273.48 : 12,405.90 = 3,076.52 : x
2. Step 2: Convert to fraction form
   8,273.48/12,405.90 = 3,076.52/x
3. Step 3: Cross multiply
   8,273.48x = 12,405.90 × 3,076.52
4. Step 4: Simplify right side
   8,273.48x = 38,166,999.47
5. Step 5: Solve for x
   x = 38,166,999.47/8,273.48
6. Step 6: Final answer
   x = 4,613.17