Finding the Fourth Proportional to 269,980.47, 404,981.78 and 92,609.46

Step by Step Solution

1. Step 1: Write the proportion equation
   269,980.47 : 404,981.78 = 92,609.46 : x
2. Step 2: Convert to fraction form
   269,980.47/404,981.78 = 92,609.46/x
3. Step 3: Cross multiply
   269,980.47x = 404,981.78 × 92,609.46
4. Step 4: Simplify right side
   269,980.47x = 37,505,143,492.59
5. Step 5: Solve for x
   x = 37,505,143,492.59/269,980.47
6. Step 6: Final answer
   x = 138,917.99