Finding the Fourth Proportional to 2,142,231,166.87, 2,956,116,770.31 and 1,202,252,268.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,231,166.87 : 2,956,116,770.31 = 1,202,252,268.31 : x
2. Step 2: Convert to fraction form
   2,142,231,166.87/2,956,116,770.31 = 1,202,252,268.31/x
3. Step 3: Cross multiply
   2,142,231,166.87x = 2,956,116,770.31 × 1,202,252,268.31
4. Step 4: Simplify right side
   2,142,231,166.87x = 3,553,998,092,494,428,672
5. Step 5: Solve for x
   x = 3,553,998,092,494,428,672/2,142,231,166.87
6. Step 6: Final answer
   x = 1,659,017,078.76