Finding the Fourth Proportional to 2,153,231,357.67, 2,972,012,142.74 and 1,402,415,498.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153,231,357.67 : 2,972,012,142.74 = 1,402,415,498.68 : x
2. Step 2: Convert to fraction form
   2,153,231,357.67/2,972,012,142.74 = 1,402,415,498.68/x
3. Step 3: Cross multiply
   2,153,231,357.67x = 2,972,012,142.74 × 1,402,415,498.68
4. Step 4: Simplify right side
   2,153,231,357.67x = 4,167,995,891,229,290,496
5. Step 5: Solve for x
   x = 4,167,995,891,229,290,496/2,153,231,357.67
6. Step 6: Final answer
   x = 1,935,693,475.94