Finding the Fourth Proportional to 250,222, 345,308.79 and 149,620

Step by Step Solution

1. Step 1: Write the proportion equation
   250,222 : 345,308.79 = 149,620 : x
2. Step 2: Convert to fraction form
   250,222/345,308.79 = 149,620/x
3. Step 3: Cross multiply
   250,222x = 345,308.79 × 149,620
4. Step 4: Simplify right side
   250,222x = 51,665,101,159.80
5. Step 5: Solve for x
   x = 51,665,101,159.80/250,222
6. Step 6: Final answer
   x = 206,477.05