Finding the Fourth Proportional to 115,936.89, 159,985.22 and 64,250.52

Step by Step Solution

1. Step 1: Write the proportion equation
   115,936.89 : 159,985.22 = 64,250.52 : x
2. Step 2: Convert to fraction form
   115,936.89/159,985.22 = 64,250.52/x
3. Step 3: Cross multiply
   115,936.89x = 159,985.22 × 64,250.52
4. Step 4: Simplify right side
   115,936.89x = 10,279,133,577.31
5. Step 5: Solve for x
   x = 10,279,133,577.31/115,936.89
6. Step 6: Final answer
   x = 88,661.46