Finding the Fourth Proportional to 172,674.34, 259,039.18 and 72,849.23

Step by Step Solution

1. Step 1: Write the proportion equation
   172,674.34 : 259,039.18 = 72,849.23 : x
2. Step 2: Convert to fraction form
   172,674.34/259,039.18 = 72,849.23/x
3. Step 3: Cross multiply
   172,674.34x = 259,039.18 × 72,849.23
4. Step 4: Simplify right side
   172,674.34x = 18,870,804,802.83
5. Step 5: Solve for x
   x = 18,870,804,802.83/172,674.34
6. Step 6: Final answer
   x = 109,285.52