Finding the Fourth Proportional to 519,144.72, 778,793.76 and 164,078.16

Step by Step Solution

1. Step 1: Write the proportion equation
   519,144.72 : 778,793.76 = 164,078.16 : x
2. Step 2: Convert to fraction form
   519,144.72/778,793.76 = 164,078.16/x
3. Step 3: Cross multiply
   519,144.72x = 778,793.76 × 164,078.16
4. Step 4: Simplify right side
   519,144.72x = 127,783,047,160.28
5. Step 5: Solve for x
   x = 127,783,047,160.28/519,144.72
6. Step 6: Final answer
   x = 246,141.48