Finding the Fourth Proportional to 2,142,950,419.32, 2,956,604,400.83 and 1,238,376,807.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,950,419.32 : 2,956,604,400.83 = 1,238,376,807.90 : x
2. Step 2: Convert to fraction form
   2,142,950,419.32/2,956,604,400.83 = 1,238,376,807.90/x
3. Step 3: Cross multiply
   2,142,950,419.32x = 2,956,604,400.83 × 1,238,376,807.90
4. Step 4: Simplify right side
   2,142,950,419.32x = 3,661,390,320,125,919,744
5. Step 5: Solve for x
   x = 3,661,390,320,125,919,744/2,142,950,419.32
6. Step 6: Final answer
   x = 1,708,574,443.50