Finding the Fourth Proportional to 269,920.78, 404,839.56 and 92,387.02

Step by Step Solution

1. Step 1: Write the proportion equation
   269,920.78 : 404,839.56 = 92,387.02 : x
2. Step 2: Convert to fraction form
   269,920.78/404,839.56 = 92,387.02/x
3. Step 3: Cross multiply
   269,920.78x = 404,839.56 × 92,387.02
4. Step 4: Simplify right side
   269,920.78x = 37,401,920,526.51
5. Step 5: Solve for x
   x = 37,401,920,526.51/269,920.78
6. Step 6: Final answer
   x = 138,566.29