Finding the Fourth Proportional to 481,071,327.42, 663,878,431.89 and 261,054,753.42

Step by Step Solution

1. Step 1: Write the proportion equation
   481,071,327.42 : 663,878,431.89 = 261,054,753.42 : x
2. Step 2: Convert to fraction form
   481,071,327.42/663,878,431.89 = 261,054,753.42/x
3. Step 3: Cross multiply
   481,071,327.42x = 663,878,431.89 × 261,054,753.42
4. Step 4: Simplify right side
   481,071,327.42x = 173,308,620,337,900,192
5. Step 5: Solve for x
   x = 173,308,620,337,900,192/481,071,327.42
6. Step 6: Final answer
   x = 360,255,559.75