Finding the Fourth Proportional to 123,540.72, 185,309.26 and 39,305.98

Step by Step Solution

1. Step 1: Write the proportion equation
   123,540.72 : 185,309.26 = 39,305.98 : x
2. Step 2: Convert to fraction form
   123,540.72/185,309.26 = 39,305.98/x
3. Step 3: Cross multiply
   123,540.72x = 185,309.26 × 39,305.98
4. Step 4: Simplify right side
   123,540.72x = 7,283,762,067.37
5. Step 5: Solve for x
   x = 7,283,762,067.37/123,540.72
6. Step 6: Final answer
   x = 58,958.39