Finding the Fourth Proportional to 2,116,979,280.12, 2,921,433,828.58 and 1,177,161,743.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,979,280.12 : 2,921,433,828.58 = 1,177,161,743.86 : x
2. Step 2: Convert to fraction form
   2,116,979,280.12/2,921,433,828.58 = 1,177,161,743.86/x
3. Step 3: Cross multiply
   2,116,979,280.12x = 2,921,433,828.58 × 1,177,161,743.86
4. Step 4: Simplify right side
   2,116,979,280.12x = 3,439,000,140,222,828,544
5. Step 5: Solve for x
   x = 3,439,000,140,222,828,544/2,116,979,280.12
6. Step 6: Final answer
   x = 1,624,484,553.31