Finding the Fourth Proportional to 172,707.36, 259,132.74 and 82,704.72

Step by Step Solution

1. Step 1: Write the proportion equation
   172,707.36 : 259,132.74 = 82,704.72 : x
2. Step 2: Convert to fraction form
   172,707.36/259,132.74 = 82,704.72/x
3. Step 3: Cross multiply
   172,707.36x = 259,132.74 × 82,704.72
4. Step 4: Simplify right side
   172,707.36x = 21,431,500,704.53
5. Step 5: Solve for x
   x = 21,431,500,704.53/172,707.36
6. Step 6: Final answer
   x = 124,091.42