Finding the Fourth Proportional to 441,668.52, 662,363.33 and 142,082.31

Step by Step Solution

1. Step 1: Write the proportion equation
   441,668.52 : 662,363.33 = 142,082.31 : x
2. Step 2: Convert to fraction form
   441,668.52/662,363.33 = 142,082.31/x
3. Step 3: Cross multiply
   441,668.52x = 662,363.33 × 142,082.31
4. Step 4: Simplify right side
   441,668.52x = 94,110,111,985.69
5. Step 5: Solve for x
   x = 94,110,111,985.69/441,668.52
6. Step 6: Final answer
   x = 213,078.60