Finding the Fourth Proportional to 323,065.09, 484,597.52 and 86,401.62

Step by Step Solution

1. Step 1: Write the proportion equation
   323,065.09 : 484,597.52 = 86,401.62 : x
2. Step 2: Convert to fraction form
   323,065.09/484,597.52 = 86,401.62/x
3. Step 3: Cross multiply
   323,065.09x = 484,597.52 × 86,401.62
4. Step 4: Simplify right side
   323,065.09x = 41,870,010,775.98
5. Step 5: Solve for x
   x = 41,870,010,775.98/323,065.09
6. Step 6: Final answer
   x = 129,602.40