Finding the Fourth Proportional to 259,665,759.77, 358,338,740.00 and 142,198,271.87

Step by Step Solution

1. Step 1: Write the proportion equation
   259,665,759.77 : 358,338,740.00 = 142,198,271.87 : x
2. Step 2: Convert to fraction form
   259,665,759.77/358,338,740.00 = 142,198,271.87/x
3. Step 3: Cross multiply
   259,665,759.77x = 358,338,740.00 × 142,198,271.87
4. Step 4: Simplify right side
   259,665,759.77x = 50,955,149,569,570,560
5. Step 5: Solve for x
   x = 50,955,149,569,570,560/259,665,759.77
6. Step 6: Final answer
   x = 196,233,610.53