Finding the Fourth Proportional to 844,751.37, 1,267,131.31 and 213,665.79

Step by Step Solution

1. Step 1: Write the proportion equation
   844,751.37 : 1,267,131.31 = 213,665.79 : x
2. Step 2: Convert to fraction form
   844,751.37/1,267,131.31 = 213,665.79/x
3. Step 3: Cross multiply
   844,751.37x = 1,267,131.31 × 213,665.79
4. Step 4: Simplify right side
   844,751.37x = 270,742,612,384.89
5. Step 5: Solve for x
   x = 270,742,612,384.89/844,751.37
6. Step 6: Final answer
   x = 320,499.76