Finding the Fourth Proportional to 930,978,454.74, 1,396,611,171.09 and 317,419,191.42

Step by Step Solution

1. Step 1: Write the proportion equation
   930,978,454.74 : 1,396,611,171.09 = 317,419,191.42 : x
2. Step 2: Convert to fraction form
   930,978,454.74/1,396,611,171.09 = 317,419,191.42/x
3. Step 3: Cross multiply
   930,978,454.74x = 1,396,611,171.09 × 317,419,191.42
4. Step 4: Simplify right side
   930,978,454.74x = 443,311,188,655,527,104
5. Step 5: Solve for x
   x = 443,311,188,655,527,104/930,978,454.74
6. Step 6: Final answer
   x = 476,177,710.02