Finding the Fourth Proportional to 115,357.76, 159,222.56 and 65,085.92

Step by Step Solution

1. Step 1: Write the proportion equation
   115,357.76 : 159,222.56 = 65,085.92 : x
2. Step 2: Convert to fraction form
   115,357.76/159,222.56 = 65,085.92/x
3. Step 3: Cross multiply
   115,357.76x = 159,222.56 × 65,085.92
4. Step 4: Simplify right side
   115,357.76x = 10,363,146,802.36
5. Step 5: Solve for x
   x = 10,363,146,802.36/115,357.76
6. Step 6: Final answer
   x = 89,834.85