Finding the Fourth Proportional to 443,141.32, 664,572.55 and 143,552.39

Step by Step Solution

1. Step 1: Write the proportion equation
   443,141.32 : 664,572.55 = 143,552.39 : x
2. Step 2: Convert to fraction form
   443,141.32/664,572.55 = 143,552.39/x
3. Step 3: Cross multiply
   443,141.32x = 664,572.55 × 143,552.39
4. Step 4: Simplify right side
   443,141.32x = 95,400,974,558.03
5. Step 5: Solve for x
   x = 95,400,974,558.03/443,141.32
6. Step 6: Final answer
   x = 215,283.41