Finding the Fourth Proportional to 115,317.56, 159,138.27 and 65,016.56

Step by Step Solution

1. Step 1: Write the proportion equation
   115,317.56 : 159,138.27 = 65,016.56 : x
2. Step 2: Convert to fraction form
   115,317.56/159,138.27 = 65,016.56/x
3. Step 3: Cross multiply
   115,317.56x = 159,138.27 × 65,016.56
4. Step 4: Simplify right side
   115,317.56x = 10,346,623,277.60
5. Step 5: Solve for x
   x = 10,346,623,277.60/115,317.56
6. Step 6: Final answer
   x = 89,722.88