Finding the Fourth Proportional to 12,752,414,496,724, 19,128,621,745,089 and 12,752,414,496,724

Step by Step Solution

1. Step 1: Write the proportion equation
   12,752,414,496,724 : 19,128,621,745,089 = 12,752,414,496,724 : x
2. Step 2: Convert to fraction form
   12,752,414,496,724/19,128,621,745,089 = 12,752,414,496,724/x
3. Step 3: Cross multiply
   12,752,414,496,724x = 19,128,621,745,089 × 12,752,414,496,724
4. Step 4: Simplify right side
   12,752,414,496,724x = 243,936,113,244,422,900,795,047,936
5. Step 5: Solve for x
   x = 243,936,113,244,422,900,795,047,936/12,752,414,496,724
6. Step 6: Final answer
   x = 19,128,621,745,089