Finding the Fourth Proportional to 476,620.50, 714,743.82 and 172,942.50

Step by Step Solution

1. Step 1: Write the proportion equation
   476,620.50 : 714,743.82 = 172,942.50 : x
2. Step 2: Convert to fraction form
   476,620.50/714,743.82 = 172,942.50/x
3. Step 3: Cross multiply
   476,620.50x = 714,743.82 × 172,942.50
4. Step 4: Simplify right side
   476,620.50x = 123,609,583,090.35
5. Step 5: Solve for x
   x = 123,609,583,090.35/476,620.50
6. Step 6: Final answer
   x = 259,345.92