Finding the Fourth Proportional to 410,973.57, 616,510.17 and 144,679.59

Step by Step Solution

1. Step 1: Write the proportion equation
   410,973.57 : 616,510.17 = 144,679.59 : x
2. Step 2: Convert to fraction form
   410,973.57/616,510.17 = 144,679.59/x
3. Step 3: Cross multiply
   410,973.57x = 616,510.17 × 144,679.59
4. Step 4: Simplify right side
   410,973.57x = 89,196,438,626.43
5. Step 5: Solve for x
   x = 89,196,438,626.43/410,973.57
6. Step 6: Final answer
   x = 217,036.92