Finding the Fourth Proportional to 172,604.88, 258,610.25 and 134,729.69

Step by Step Solution

1. Step 1: Write the proportion equation
   172,604.88 : 258,610.25 = 134,729.69 : x
2. Step 2: Convert to fraction form
   172,604.88/258,610.25 = 134,729.69/x
3. Step 3: Cross multiply
   172,604.88x = 258,610.25 × 134,729.69
4. Step 4: Simplify right side
   172,604.88x = 34,842,477,857.10
5. Step 5: Solve for x
   x = 34,842,477,857.10/172,604.88
6. Step 6: Final answer
   x = 201,862.65