Finding the Fourth Proportional to 269,827.50, 404,760.88 and 103,615.50

Step by Step Solution

1. Step 1: Write the proportion equation
   269,827.50 : 404,760.88 = 103,615.50 : x
2. Step 2: Convert to fraction form
   269,827.50/404,760.88 = 103,615.50/x
3. Step 3: Cross multiply
   269,827.50x = 404,760.88 × 103,615.50
4. Step 4: Simplify right side
   269,827.50x = 41,939,500,961.64
5. Step 5: Solve for x
   x = 41,939,500,961.64/269,827.50
6. Step 6: Final answer
   x = 155,430.79