Finding the Fourth Proportional to 115,936.04, 159,991.72 and 65,635.04

Step by Step Solution

1. Step 1: Write the proportion equation
   115,936.04 : 159,991.72 = 65,635.04 : x
2. Step 2: Convert to fraction form
   115,936.04/159,991.72 = 65,635.04/x
3. Step 3: Cross multiply
   115,936.04x = 159,991.72 × 65,635.04
4. Step 4: Simplify right side
   115,936.04x = 10,501,063,177.76
5. Step 5: Solve for x
   x = 10,501,063,177.76/115,936.04
6. Step 6: Final answer
   x = 90,576.35