Finding the Fourth Proportional to 411,032.72, 616,535.18 and 144,786.27

Step by Step Solution

1. Step 1: Write the proportion equation
   411,032.72 : 616,535.18 = 144,786.27 : x
2. Step 2: Convert to fraction form
   411,032.72/616,535.18 = 144,786.27/x
3. Step 3: Cross multiply
   411,032.72x = 616,535.18 × 144,786.27
4. Step 4: Simplify right side
   411,032.72x = 89,265,829,035.98
5. Step 5: Solve for x
   x = 89,265,829,035.98/411,032.72
6. Step 6: Final answer
   x = 217,174.51