Finding the Fourth Proportional to 269,527.50, 404,310.69 and 103,315.50

Step by Step Solution

1. Step 1: Write the proportion equation
   269,527.50 : 404,310.69 = 103,315.50 : x
2. Step 2: Convert to fraction form
   269,527.50/404,310.69 = 103,315.50/x
3. Step 3: Cross multiply
   269,527.50x = 404,310.69 × 103,315.50
4. Step 4: Simplify right side
   269,527.50x = 41,771,561,092.70
5. Step 5: Solve for x
   x = 41,771,561,092.70/269,527.50
6. Step 6: Final answer
   x = 154,980.70