Finding the Fourth Proportional to 1,040,530,444.56, 1,560,796,191.72 and 313,519,156.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040,530,444.56 : 1,560,796,191.72 = 313,519,156.56 : x
2. Step 2: Convert to fraction form
   1,040,530,444.56/1,560,796,191.72 = 313,519,156.56/x
3. Step 3: Cross multiply
   1,040,530,444.56x = 1,560,796,191.72 × 313,519,156.56
4. Step 4: Simplify right side
   1,040,530,444.56x = 489,339,505,590,114,496
5. Step 5: Solve for x
   x = 489,339,505,590,114,496/1,040,530,444.56
6. Step 6: Final answer
   x = 470,278,892.99