Finding the Fourth Proportional to 282,443.24, 423,664.50 and 72,081.18

Step by Step Solution

1. Step 1: Write the proportion equation
   282,443.24 : 423,664.50 = 72,081.18 : x
2. Step 2: Convert to fraction form
   282,443.24/423,664.50 = 72,081.18/x
3. Step 3: Cross multiply
   282,443.24x = 423,664.50 × 72,081.18
4. Step 4: Simplify right side
   282,443.24x = 30,538,237,084.11
5. Step 5: Solve for x
   x = 30,538,237,084.11/282,443.24
6. Step 6: Final answer
   x = 108,121.68