Finding the Fourth Proportional to 930,978,453.24, 1,396,611,168.84 and 317,419,189.92

Step by Step Solution

1. Step 1: Write the proportion equation
   930,978,453.24 : 1,396,611,168.84 = 317,419,189.92 : x
2. Step 2: Convert to fraction form
   930,978,453.24/1,396,611,168.84 = 317,419,189.92/x
3. Step 3: Cross multiply
   930,978,453.24x = 1,396,611,168.84 × 317,419,189.92
4. Step 4: Simplify right side
   930,978,453.24x = 443,311,185,846,417,152
5. Step 5: Solve for x
   x = 443,311,185,846,417,152/930,978,453.24
6. Step 6: Final answer
   x = 476,177,707.77