Finding the Fourth Proportional to 115,815.56, 159,823.94 and 65,514.56

Step by Step Solution

1. Step 1: Write the proportion equation
   115,815.56 : 159,823.94 = 65,514.56 : x
2. Step 2: Convert to fraction form
   115,815.56/159,823.94 = 65,514.56/x
3. Step 3: Cross multiply
   115,815.56x = 159,823.94 × 65,514.56
4. Step 4: Simplify right side
   115,815.56x = 10,470,795,106.57
5. Step 5: Solve for x
   x = 10,470,795,106.57/115,815.56
6. Step 6: Final answer
   x = 90,409.23