Finding the Fourth Proportional to 930,978,443.56, 1,396,611,154.42 and 317,419,180.24

Step by Step Solution

1. Step 1: Write the proportion equation
   930,978,443.56 : 1,396,611,154.42 = 317,419,180.24 : x
2. Step 2: Convert to fraction form
   930,978,443.56/1,396,611,154.42 = 317,419,180.24/x
3. Step 3: Cross multiply
   930,978,443.56x = 1,396,611,154.42 × 317,419,180.24
4. Step 4: Simplify right side
   930,978,443.56x = 443,311,167,750,036,480
5. Step 5: Solve for x
   x = 443,311,167,750,036,480/930,978,443.56
6. Step 6: Final answer
   x = 476,177,693.28