Finding the Fourth Proportional to 39,978.36, 55,186.56 and 27,273.48

Step by Step Solution

1. Step 1: Write the proportion equation
   39,978.36 : 55,186.56 = 27,273.48 : x
2. Step 2: Convert to fraction form
   39,978.36/55,186.56 = 27,273.48/x
3. Step 3: Cross multiply
   39,978.36x = 55,186.56 × 27,273.48
4. Step 4: Simplify right side
   39,978.36x = 1,505,129,540.43
5. Step 5: Solve for x
   x = 1,505,129,540.43/39,978.36
6. Step 6: Final answer
   x = 37,648.61