Finding the Fourth Proportional to 329,997.45, 495,004.71 and 105,357.69

Step by Step Solution

1. Step 1: Write the proportion equation
   329,997.45 : 495,004.71 = 105,357.69 : x
2. Step 2: Convert to fraction form
   329,997.45/495,004.71 = 105,357.69/x
3. Step 3: Cross multiply
   329,997.45x = 495,004.71 × 105,357.69
4. Step 4: Simplify right side
   329,997.45x = 52,152,552,784.72
5. Step 5: Solve for x
   x = 52,152,552,784.72/329,997.45
6. Step 6: Final answer
   x = 158,039.26