Finding the Fourth Proportional to 978,954,355.92, 1,468,472,058.72 and 288,861,596.76

Step by Step Solution

1. Step 1: Write the proportion equation
   978,954,355.92 : 1,468,472,058.72 = 288,861,596.76 : x
2. Step 2: Convert to fraction form
   978,954,355.92/1,468,472,058.72 = 288,861,596.76/x
3. Step 3: Cross multiply
   978,954,355.92x = 1,468,472,058.72 × 288,861,596.76
4. Step 4: Simplify right side
   978,954,355.92x = 424,185,183,679,303,680
5. Step 5: Solve for x
   x = 424,185,183,679,303,680/978,954,355.92
6. Step 6: Final answer
   x = 433,304,352.87