Finding the Fourth Proportional to 144,320.94, 216,404.06 and 72,262.53

Step by Step Solution

1. Step 1: Write the proportion equation
   144,320.94 : 216,404.06 = 72,262.53 : x
2. Step 2: Convert to fraction form
   144,320.94/216,404.06 = 72,262.53/x
3. Step 3: Cross multiply
   144,320.94x = 216,404.06 × 72,262.53
4. Step 4: Simplify right side
   144,320.94x = 15,637,904,516.56
5. Step 5: Solve for x
   x = 15,637,904,516.56/144,320.94
6. Step 6: Final answer
   x = 108,355.06