Finding the Fourth Proportional to 269,335.30, 404,000.45 and 103,123.30

Step by Step Solution

1. Step 1: Write the proportion equation
   269,335.30 : 404,000.45 = 103,123.30 : x
2. Step 2: Convert to fraction form
   269,335.30/404,000.45 = 103,123.30/x
3. Step 3: Cross multiply
   269,335.30x = 404,000.45 × 103,123.30
4. Step 4: Simplify right side
   269,335.30x = 41,661,859,605.49
5. Step 5: Solve for x
   x = 41,661,859,605.49/269,335.30
6. Step 6: Final answer
   x = 154,683.99