Finding the Fourth Proportional to 119,078.72, 178,664.16 and 56,755.52

Step by Step Solution

1. Step 1: Write the proportion equation
   119,078.72 : 178,664.16 = 56,755.52 : x
2. Step 2: Convert to fraction form
   119,078.72/178,664.16 = 56,755.52/x
3. Step 3: Cross multiply
   119,078.72x = 178,664.16 × 56,755.52
4. Step 4: Simplify right side
   119,078.72x = 10,140,177,306.16
5. Step 5: Solve for x
   x = 10,140,177,306.16/119,078.72
6. Step 6: Final answer
   x = 85,155.24