Finding the Fourth Proportional to 12,752,414,496,688, 19,128,621,745,030 and 12,752,414,496,688

Step by Step Solution

1. Step 1: Write the proportion equation
   12,752,414,496,688 : 19,128,621,745,030 = 12,752,414,496,688 : x
2. Step 2: Convert to fraction form
   12,752,414,496,688/19,128,621,745,030 = 12,752,414,496,688/x
3. Step 3: Cross multiply
   12,752,414,496,688x = 19,128,621,745,030 × 12,752,414,496,688
4. Step 4: Simplify right side
   12,752,414,496,688x = 243,936,113,242,981,887,727,632,384
5. Step 5: Solve for x
   x = 243,936,113,242,981,887,727,632,384/12,752,414,496,688
6. Step 6: Final answer
   x = 19,128,621,745,030