Finding the Fourth Proportional to 451,981.72, 677,971.89 and 185,554.54

Step by Step Solution

1. Step 1: Write the proportion equation
   451,981.72 : 677,971.89 = 185,554.54 : x
2. Step 2: Convert to fraction form
   451,981.72/677,971.89 = 185,554.54/x
3. Step 3: Cross multiply
   451,981.72x = 677,971.89 × 185,554.54
4. Step 4: Simplify right side
   451,981.72x = 125,800,762,181.88
5. Step 5: Solve for x
   x = 125,800,762,181.88/451,981.72
6. Step 6: Final answer
   x = 278,331.53