Finding the Fourth Proportional to 282,443.74, 423,665.24 and 72,081.68

Step by Step Solution

1. Step 1: Write the proportion equation
   282,443.74 : 423,665.24 = 72,081.68 : x
2. Step 2: Convert to fraction form
   282,443.74/423,665.24 = 72,081.68/x
3. Step 3: Cross multiply
   282,443.74x = 423,665.24 × 72,081.68
4. Step 4: Simplify right side
   282,443.74x = 30,538,502,256.80
5. Step 5: Solve for x
   x = 30,538,502,256.80/282,443.74
6. Step 6: Final answer
   x = 108,122.43