Finding the Fourth Proportional to 282,448.56, 423,672.60 and 72,086.48

Step by Step Solution

1. Step 1: Write the proportion equation
   282,448.56 : 423,672.60 = 72,086.48 : x
2. Step 2: Convert to fraction form
   282,448.56/423,672.60 = 72,086.48/x
3. Step 3: Cross multiply
   282,448.56x = 423,672.60 × 72,086.48
4. Step 4: Simplify right side
   282,448.56x = 30,541,066,406.45
5. Step 5: Solve for x
   x = 30,541,066,406.45/282,448.56
6. Step 6: Final answer
   x = 108,129.66