Finding the Fourth Proportional to 2,139,397,819.40, 2,951,926,882.37 and 1,235,138,084.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,397,819.40 : 2,951,926,882.37 = 1,235,138,084.37 : x
2. Step 2: Convert to fraction form
   2,139,397,819.40/2,951,926,882.37 = 1,235,138,084.37/x
3. Step 3: Cross multiply
   2,139,397,819.40x = 2,951,926,882.37 × 1,235,138,084.37
4. Step 4: Simplify right side
   2,139,397,819.40x = 3,646,037,314,690,787,840
5. Step 5: Solve for x
   x = 3,646,037,314,690,787,840/2,139,397,819.40
6. Step 6: Final answer
   x = 1,704,235,314.08