Finding the Fourth Proportional to 142,003,055,471.57, 195,970,376,542.35 and 78,638,282,159.57

Step by Step Solution

1. Step 1: Write the proportion equation
   142,003,055,471.57 : 195,970,376,542.35 = 78,638,282,159.57 : x
2. Step 2: Convert to fraction form
   142,003,055,471.57/195,970,376,542.35 = 78,638,282,159.57/x
3. Step 3: Cross multiply
   142,003,055,471.57x = 195,970,376,542.35 × 78,638,282,159.57
4. Step 4: Simplify right side
   142,003,055,471.57x = 15,410,773,765,453,518,995,456
5. Step 5: Solve for x
   x = 15,410,773,765,453,518,995,456/142,003,055,471.57
6. Step 6: Final answer
   x = 108,524,240,652.97