Finding the Fourth Proportional to 282,436.54, 423,654.57 and 72,074.48

Step by Step Solution

1. Step 1: Write the proportion equation
   282,436.54 : 423,654.57 = 72,074.48 : x
2. Step 2: Convert to fraction form
   282,436.54/423,654.57 = 72,074.48/x
3. Step 3: Cross multiply
   282,436.54x = 423,654.57 × 72,074.48
4. Step 4: Simplify right side
   282,436.54x = 30,534,680,714.10
5. Step 5: Solve for x
   x = 30,534,680,714.10/282,436.54
6. Step 6: Final answer
   x = 108,111.65