Finding the Fourth Proportional to 323,617.84, 485,426.34 and 86,960.52

Step by Step Solution

1. Step 1: Write the proportion equation
   323,617.84 : 485,426.34 = 86,960.52 : x
2. Step 2: Convert to fraction form
   323,617.84/485,426.34 = 86,960.52/x
3. Step 3: Cross multiply
   323,617.84x = 485,426.34 × 86,960.52
4. Step 4: Simplify right side
   323,617.84x = 42,212,928,379.06
5. Step 5: Solve for x
   x = 42,212,928,379.06/323,617.84
6. Step 6: Final answer
   x = 130,440.67