Finding the Fourth Proportional to 258,672.04, 356,964.83 and 143,948.72

Step by Step Solution

1. Step 1: Write the proportion equation
   258,672.04 : 356,964.83 = 143,948.72 : x
2. Step 2: Convert to fraction form
   258,672.04/356,964.83 = 143,948.72/x
3. Step 3: Cross multiply
   258,672.04x = 356,964.83 × 143,948.72
4. Step 4: Simplify right side
   258,672.04x = 51,384,630,363.52
5. Step 5: Solve for x
   x = 51,384,630,363.52/258,672.04
6. Step 6: Final answer
   x = 198,647.79