Finding the Fourth Proportional to 8,139.48, 12,204.96 and 3,753.19

Step by Step Solution

1. Step 1: Write the proportion equation
   8,139.48 : 12,204.96 = 3,753.19 : x
2. Step 2: Convert to fraction form
   8,139.48/12,204.96 = 3,753.19/x
3. Step 3: Cross multiply
   8,139.48x = 12,204.96 × 3,753.19
4. Step 4: Simplify right side
   8,139.48x = 45,807,533.82
5. Step 5: Solve for x
   x = 45,807,533.82/8,139.48
6. Step 6: Final answer
   x = 5,627.82