Finding the Fourth Proportional to 259,756,562,987.94, 389,362,095,735.83 and 87,397,225,666.50

Step by Step Solution

1. Step 1: Write the proportion equation
   259,756,562,987.94 : 389,362,095,735.83 = 87,397,225,666.50 : x
2. Step 2: Convert to fraction form
   259,756,562,987.94/389,362,095,735.83 = 87,397,225,666.50/x
3. Step 3: Cross multiply
   259,756,562,987.94x = 389,362,095,735.83 × 87,397,225,666.50
4. Step 4: Simplify right side
   259,756,562,987.94x = 34,029,166,947,003,764,047,872
5. Step 5: Solve for x
   x = 34,029,166,947,003,764,047,872/259,756,562,987.94
6. Step 6: Final answer
   x = 131,004,069,947.54