Finding the Fourth Proportional to 115,936.27, 160,002.18 and 64,948.18

Step by Step Solution

1. Step 1: Write the proportion equation
   115,936.27 : 160,002.18 = 64,948.18 : x
2. Step 2: Convert to fraction form
   115,936.27/160,002.18 = 64,948.18/x
3. Step 3: Cross multiply
   115,936.27x = 160,002.18 × 64,948.18
4. Step 4: Simplify right side
   115,936.27x = 10,391,850,387.03
5. Step 5: Solve for x
   x = 10,391,850,387.03/115,936.27
6. Step 6: Final answer
   x = 89,634.16