Finding the Fourth Proportional to 115,425, 159,296.22 and 65,133.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,425 : 159,296.22 = 65,133.72 : x
2. Step 2: Convert to fraction form
   115,425/159,296.22 = 65,133.72/x
3. Step 3: Cross multiply
   115,425x = 159,296.22 × 65,133.72
4. Step 4: Simplify right side
   115,425x = 10,375,555,390.54
5. Step 5: Solve for x
   x = 10,375,555,390.54/115,425
6. Step 6: Final answer
   x = 89,890.02