Finding the Fourth Proportional to 2,165,468,478.72, 2,988,269,181 and 1,225,650,942.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165,468,478.72 : 2,988,269,181 = 1,225,650,942.52 : x
2. Step 2: Convert to fraction form
   2,165,468,478.72/2,988,269,181 = 1,225,650,942.52/x
3. Step 3: Cross multiply
   2,165,468,478.72x = 2,988,269,181 × 1,225,650,942.52
4. Step 4: Simplify right side
   2,165,468,478.72x = 3,662,574,938,196,118,528
5. Step 5: Solve for x
   x = 3,662,574,938,196,118,528/2,165,468,478.72
6. Step 6: Final answer
   x = 1,691,354,537.92