Finding the Fourth Proportional to 639,530.48, 882,553.98 and 349,142.52

Step by Step Solution

1. Step 1: Write the proportion equation
   639,530.48 : 882,553.98 = 349,142.52 : x
2. Step 2: Convert to fraction form
   639,530.48/882,553.98 = 349,142.52/x
3. Step 3: Cross multiply
   639,530.48x = 882,553.98 × 349,142.52
4. Step 4: Simplify right side
   639,530.48x = 308,137,120,613.23
5. Step 5: Solve for x
   x = 308,137,120,613.23/639,530.48
6. Step 6: Final answer
   x = 481,817.72