Finding the Fourth Proportional to 123,647.62, 185,485.06 and 39,388.18

Step by Step Solution

1. Step 1: Write the proportion equation
   123,647.62 : 185,485.06 = 39,388.18 : x
2. Step 2: Convert to fraction form
   123,647.62/185,485.06 = 39,388.18/x
3. Step 3: Cross multiply
   123,647.62x = 185,485.06 × 39,388.18
4. Step 4: Simplify right side
   123,647.62x = 7,305,918,930.59
5. Step 5: Solve for x
   x = 7,305,918,930.59/123,647.62
6. Step 6: Final answer
   x = 59,086.61