Finding the Fourth Proportional to 2,165,229,689.34, 2,988,019,854.63 and 1,175,155,106.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165,229,689.34 : 2,988,019,854.63 = 1,175,155,106.34 : x
2. Step 2: Convert to fraction form
   2,165,229,689.34/2,988,019,854.63 = 1,175,155,106.34/x
3. Step 3: Cross multiply
   2,165,229,689.34x = 2,988,019,854.63 × 1,175,155,106.34
4. Step 4: Simplify right side
   2,165,229,689.34x = 3,511,386,790,013,748,736
5. Step 5: Solve for x
   x = 3,511,386,790,013,748,736/2,165,229,689.34
6. Step 6: Final answer
   x = 1,621,715,611.65