Finding the Fourth Proportional to 257,007.47, 354,831.30 and 165,164.00

Step by Step Solution

1. Step 1: Write the proportion equation
   257,007.47 : 354,831.30 = 165,164.00 : x
2. Step 2: Convert to fraction form
   257,007.47/354,831.30 = 165,164.00/x
3. Step 3: Cross multiply
   257,007.47x = 354,831.30 × 165,164.00
4. Step 4: Simplify right side
   257,007.47x = 58,605,355,059.04
5. Step 5: Solve for x
   x = 58,605,355,059.04/257,007.47
6. Step 6: Final answer
   x = 228,029.78