Finding the Fourth Proportional to 443,343.99, 665,109.52 and 143,801.31

Step by Step Solution

1. Step 1: Write the proportion equation
   443,343.99 : 665,109.52 = 143,801.31 : x
2. Step 2: Convert to fraction form
   443,343.99/665,109.52 = 143,801.31/x
3. Step 3: Cross multiply
   443,343.99x = 665,109.52 × 143,801.31
4. Step 4: Simplify right side
   443,343.99x = 95,643,620,269.47
5. Step 5: Solve for x
   x = 95,643,620,269.47/443,343.99
6. Step 6: Final answer
   x = 215,732.30