Finding the Fourth Proportional to 245,987,456.29, 369,074,375.24 and 147,687,809.60

Step by Step Solution

1. Step 1: Write the proportion equation
   245,987,456.29 : 369,074,375.24 = 147,687,809.60 : x
2. Step 2: Convert to fraction form
   245,987,456.29/369,074,375.24 = 147,687,809.60/x
3. Step 3: Cross multiply
   245,987,456.29x = 369,074,375.24 × 147,687,809.60
4. Step 4: Simplify right side
   245,987,456.29x = 54,507,786,058,868,320
5. Step 5: Solve for x
   x = 54,507,786,058,868,320/245,987,456.29
6. Step 6: Final answer
   x = 221,587,665.00