Finding the Fourth Proportional to 447,238.03, 670,714.78 and 147,662.83

Step by Step Solution

1. Step 1: Write the proportion equation
   447,238.03 : 670,714.78 = 147,662.83 : x
2. Step 2: Convert to fraction form
   447,238.03/670,714.78 = 147,662.83/x
3. Step 3: Cross multiply
   447,238.03x = 670,714.78 × 147,662.83
4. Step 4: Simplify right side
   447,238.03x = 99,039,642,537.63
5. Step 5: Solve for x
   x = 99,039,642,537.63/447,238.03
6. Step 6: Final answer
   x = 221,447.27