Finding the Fourth Proportional to 115,814.56, 159,822.57 and 65,513.56

Step by Step Solution

1. Step 1: Write the proportion equation
   115,814.56 : 159,822.57 = 65,513.56 : x
2. Step 2: Convert to fraction form
   115,814.56/159,822.57 = 65,513.56/x
3. Step 3: Cross multiply
   115,814.56x = 159,822.57 × 65,513.56
4. Step 4: Simplify right side
   115,814.56x = 10,470,545,529.05
5. Step 5: Solve for x
   x = 10,470,545,529.05/115,814.56
6. Step 6: Final answer
   x = 90,407.85