Finding the Fourth Proportional to 145,081.48, 217,572.78 and 50,289.52

Step by Step Solution

1. Step 1: Write the proportion equation
   145,081.48 : 217,572.78 = 50,289.52 : x
2. Step 2: Convert to fraction form
   145,081.48/217,572.78 = 50,289.52/x
3. Step 3: Cross multiply
   145,081.48x = 217,572.78 × 50,289.52
4. Step 4: Simplify right side
   145,081.48x = 10,941,630,671.27
5. Step 5: Solve for x
   x = 10,941,630,671.27/145,081.48
6. Step 6: Final answer
   x = 75,417.14