Finding the Fourth Proportional to 401,796.15, 603,034.43 and 165,308.55

Step by Step Solution

1. Step 1: Write the proportion equation
   401,796.15 : 603,034.43 = 165,308.55 : x
2. Step 2: Convert to fraction form
   401,796.15/603,034.43 = 165,308.55/x
3. Step 3: Cross multiply
   401,796.15x = 603,034.43 × 165,308.55
4. Step 4: Simplify right side
   401,796.15x = 99,686,746,396.83
5. Step 5: Solve for x
   x = 99,686,746,396.83/401,796.15
6. Step 6: Final answer
   x = 248,102.79