Finding the Fourth Proportional to 282,448.25, 423,671.98 and 72,086.18

Step by Step Solution

1. Step 1: Write the proportion equation
   282,448.25 : 423,671.98 = 72,086.18 : x
2. Step 2: Convert to fraction form
   282,448.25/423,671.98 = 72,086.18/x
3. Step 3: Cross multiply
   282,448.25x = 423,671.98 × 72,086.18
4. Step 4: Simplify right side
   282,448.25x = 30,540,894,611.24
5. Step 5: Solve for x
   x = 30,540,894,611.24/282,448.25
6. Step 6: Final answer
   x = 108,129.17