Finding the Fourth Proportional to 269,116.50, 371,380.78 and 149,884.50

Step by Step Solution

1. Step 1: Write the proportion equation
   269,116.50 : 371,380.78 = 149,884.50 : x
2. Step 2: Convert to fraction form
   269,116.50/371,380.78 = 149,884.50/x
3. Step 3: Cross multiply
   269,116.50x = 371,380.78 × 149,884.50
4. Step 4: Simplify right side
   269,116.50x = 55,664,222,519.91
5. Step 5: Solve for x
   x = 55,664,222,519.91/269,116.50
6. Step 6: Final answer
   x = 206,840.62