Finding the Fourth Proportional to 408,651.89, 612,971.69 and 183,853.60

Step by Step Solution

1. Step 1: Write the proportion equation
   408,651.89 : 612,971.69 = 183,853.60 : x
2. Step 2: Convert to fraction form
   408,651.89/612,971.69 = 183,853.60/x
3. Step 3: Cross multiply
   408,651.89x = 612,971.69 × 183,853.60
4. Step 4: Simplify right side
   408,651.89x = 112,697,049,452.89
5. Step 5: Solve for x
   x = 112,697,049,452.89/408,651.89
6. Step 6: Final answer
   x = 275,777.63