Finding the Fourth Proportional to 159,860.56, 239,738.92 and 53,215.87

Step by Step Solution

1. Step 1: Write the proportion equation
   159,860.56 : 239,738.92 = 53,215.87 : x
2. Step 2: Convert to fraction form
   159,860.56/239,738.92 = 53,215.87/x
3. Step 3: Cross multiply
   159,860.56x = 239,738.92 × 53,215.87
4. Step 4: Simplify right side
   159,860.56x = 12,757,914,667.83
5. Step 5: Solve for x
   x = 12,757,914,667.83/159,860.56
6. Step 6: Final answer
   x = 79,806.52