Finding the Fourth Proportional to 277,578.78, 383,076.42 and 156,675.96

Step by Step Solution

1. Step 1: Write the proportion equation
   277,578.78 : 383,076.42 = 156,675.96 : x
2. Step 2: Convert to fraction form
   277,578.78/383,076.42 = 156,675.96/x
3. Step 3: Cross multiply
   277,578.78x = 383,076.42 × 156,675.96
4. Step 4: Simplify right side
   277,578.78x = 60,018,865,856.86
5. Step 5: Solve for x
   x = 60,018,865,856.86/277,578.78
6. Step 6: Final answer
   x = 216,222.82