Finding the Fourth Proportional to 321,039,996.18, 443,037,462.39 and 174,362,280.18

Step by Step Solution

1. Step 1: Write the proportion equation
   321,039,996.18 : 443,037,462.39 = 174,362,280.18 : x
2. Step 2: Convert to fraction form
   321,039,996.18/443,037,462.39 = 174,362,280.18/x
3. Step 3: Cross multiply
   321,039,996.18x = 443,037,462.39 × 174,362,280.18
4. Step 4: Simplify right side
   321,039,996.18x = 77,249,022,147,481,392
5. Step 5: Solve for x
   x = 77,249,022,147,481,392/321,039,996.18
6. Step 6: Final answer
   x = 240,621,178.25