Finding the Fourth Proportional to 172,917.89, 259,399.52 and 67,723.19

Step by Step Solution

1. Step 1: Write the proportion equation
   172,917.89 : 259,399.52 = 67,723.19 : x
2. Step 2: Convert to fraction form
   172,917.89/259,399.52 = 67,723.19/x
3. Step 3: Cross multiply
   172,917.89x = 259,399.52 × 67,723.19
4. Step 4: Simplify right side
   172,917.89x = 17,567,362,978.87
5. Step 5: Solve for x
   x = 17,567,362,978.87/172,917.89
6. Step 6: Final answer
   x = 101,593.67