Finding the Fourth Proportional to 887,108,716.16, 1,224,160,436.94 and 485,143,080.56

Step by Step Solution

1. Step 1: Write the proportion equation
   887,108,716.16 : 1,224,160,436.94 = 485,143,080.56 : x
2. Step 2: Convert to fraction form
   887,108,716.16/1,224,160,436.94 = 485,143,080.56/x
3. Step 3: Cross multiply
   887,108,716.16x = 1,224,160,436.94 × 485,143,080.56
4. Step 4: Simplify right side
   887,108,716.16x = 593,892,965,476,747,264
5. Step 5: Solve for x
   x = 593,892,965,476,747,264/887,108,716.16
6. Step 6: Final answer
   x = 669,470,330.59