Finding the Fourth Proportional to 12,752,414,495,874, 19,128,621,743,812 and 12,752,414,495,874

Step by Step Solution

1. Step 1: Write the proportion equation
   12,752,414,495,874 : 19,128,621,743,812 = 12,752,414,495,874 : x
2. Step 2: Convert to fraction form
   12,752,414,495,874/19,128,621,743,812 = 12,752,414,495,874/x
3. Step 3: Cross multiply
   12,752,414,495,874x = 19,128,621,743,812 × 12,752,414,495,874
4. Step 4: Simplify right side
   12,752,414,495,874x = 243,936,113,211,878,731,002,413,056
5. Step 5: Solve for x
   x = 243,936,113,211,878,731,002,413,056/12,752,414,495,874
6. Step 6: Final answer
   x = 19,128,621,743,812