Finding the Fourth Proportional to 441,478,061.92, 609,258,520.56 and 245,907,860.32

Step by Step Solution

1. Step 1: Write the proportion equation
   441,478,061.92 : 609,258,520.56 = 245,907,860.32 : x
2. Step 2: Convert to fraction form
   441,478,061.92/609,258,520.56 = 245,907,860.32/x
3. Step 3: Cross multiply
   441,478,061.92x = 609,258,520.56 × 245,907,860.32
4. Step 4: Simplify right side
   441,478,061.92x = 149,821,459,172,638,304
5. Step 5: Solve for x
   x = 149,821,459,172,638,304/441,478,061.92
6. Step 6: Final answer
   x = 339,363,316.31