Finding the Fourth Proportional to 245,959.25, 339,424.46 and 142,613.47

Step by Step Solution

1. Step 1: Write the proportion equation
   245,959.25 : 339,424.46 = 142,613.47 : x
2. Step 2: Convert to fraction form
   245,959.25/339,424.46 = 142,613.47/x
3. Step 3: Cross multiply
   245,959.25x = 339,424.46 × 142,613.47
4. Step 4: Simplify right side
   245,959.25x = 48,406,499,551.45
5. Step 5: Solve for x
   x = 48,406,499,551.45/245,959.25
6. Step 6: Final answer
   x = 196,806.99