Finding the Fourth Proportional to 185,389.69, 255,380.20 and 158,076.89

Step by Step Solution

1. Step 1: Write the proportion equation
   185,389.69 : 255,380.20 = 158,076.89 : x
2. Step 2: Convert to fraction form
   185,389.69/255,380.20 = 158,076.89/x
3. Step 3: Cross multiply
   185,389.69x = 255,380.20 × 158,076.89
4. Step 4: Simplify right side
   185,389.69x = 40,369,707,282.82
5. Step 5: Solve for x
   x = 40,369,707,282.82/185,389.69
6. Step 6: Final answer
   x = 217,755.94