Finding the Fourth Proportional to 1,827,049,132.33, 2,521,260,288.25 and 991,655,766.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,827,049,132.33 : 2,521,260,288.25 = 991,655,766.79 : x
2. Step 2: Convert to fraction form
   1,827,049,132.33/2,521,260,288.25 = 991,655,766.79/x
3. Step 3: Cross multiply
   1,827,049,132.33x = 2,521,260,288.25 × 991,655,766.79
4. Step 4: Simplify right side
   1,827,049,132.33x = 2,500,222,304,429,870,080
5. Step 5: Solve for x
   x = 2,500,222,304,429,870,080/1,827,049,132.33
6. Step 6: Final answer
   x = 1,368,448,313.83