Finding the Fourth Proportional to 115,935, 159,996.28 and 64,944.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,935 : 159,996.28 = 64,944.72 : x
2. Step 2: Convert to fraction form
   115,935/159,996.28 = 64,944.72/x
3. Step 3: Cross multiply
   115,935x = 159,996.28 × 64,944.72
4. Step 4: Simplify right side
   115,935x = 10,390,913,605.64
5. Step 5: Solve for x
   x = 10,390,913,605.64/115,935
6. Step 6: Final answer
   x = 89,627.06