Finding the Fourth Proportional to 115,468.74, 159,340.77 and 65,164.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,468.74 : 159,340.77 = 65,164.50 : x
2. Step 2: Convert to fraction form
   115,468.74/159,340.77 = 65,164.50/x
3. Step 3: Cross multiply
   115,468.74x = 159,340.77 × 65,164.50
4. Step 4: Simplify right side
   115,468.74x = 10,383,361,606.67
5. Step 5: Solve for x
   x = 10,383,361,606.67/115,468.74
6. Step 6: Final answer
   x = 89,923.57