Finding the Fourth Proportional to 72,084.36, 108,146.04 and 65,144.28

Step by Step Solution

1. Step 1: Write the proportion equation
   72,084.36 : 108,146.04 = 65,144.28 : x
2. Step 2: Convert to fraction form
   72,084.36/108,146.04 = 65,144.28/x
3. Step 3: Cross multiply
   72,084.36x = 108,146.04 × 65,144.28
4. Step 4: Simplify right side
   72,084.36x = 7,045,095,910.65
5. Step 5: Solve for x
   x = 7,045,095,910.65/72,084.36
6. Step 6: Final answer
   x = 97,734.04