Finding the Fourth Proportional to 115,382.67, 159,228 and 65,081.67

Step by Step Solution

1. Step 1: Write the proportion equation
   115,382.67 : 159,228 = 65,081.67 : x
2. Step 2: Convert to fraction form
   115,382.67/159,228 = 65,081.67/x
3. Step 3: Cross multiply
   115,382.67x = 159,228 × 65,081.67
4. Step 4: Simplify right side
   115,382.67x = 10,362,824,150.76
5. Step 5: Solve for x
   x = 10,362,824,150.76/115,382.67
6. Step 6: Final answer
   x = 89,812.66