Finding the Fourth Proportional to 259,010, 388,570.58 and 146,744

Step by Step Solution

1. Step 1: Write the proportion equation
   259,010 : 388,570.58 = 146,744 : x
2. Step 2: Convert to fraction form
   259,010/388,570.58 = 146,744/x
3. Step 3: Cross multiply
   259,010x = 388,570.58 × 146,744
4. Step 4: Simplify right side
   259,010x = 57,020,401,191.52
5. Step 5: Solve for x
   x = 57,020,401,191.52/259,010
6. Step 6: Final answer
   x = 220,147.49