Finding the Fourth Proportional to 172,448.45, 258,271.33 and 166,462.82

Step by Step Solution

1. Step 1: Write the proportion equation
   172,448.45 : 258,271.33 = 166,462.82 : x
2. Step 2: Convert to fraction form
   172,448.45/258,271.33 = 166,462.82/x
3. Step 3: Cross multiply
   172,448.45x = 258,271.33 × 166,462.82
4. Step 4: Simplify right side
   172,448.45x = 42,992,574,362.76
5. Step 5: Solve for x
   x = 42,992,574,362.76/172,448.45
6. Step 6: Final answer
   x = 249,306.81