Finding the Fourth Proportional to 145,170.82, 217,787.34 and 50,404

Step by Step Solution

1. Step 1: Write the proportion equation
   145,170.82 : 217,787.34 = 50,404 : x
2. Step 2: Convert to fraction form
   145,170.82/217,787.34 = 50,404/x
3. Step 3: Cross multiply
   145,170.82x = 217,787.34 × 50,404
4. Step 4: Simplify right side
   145,170.82x = 10,977,353,085.36
5. Step 5: Solve for x
   x = 10,977,353,085.36/145,170.82
6. Step 6: Final answer
   x = 75,616.80