Finding the Fourth Proportional to 253,499.25, 349,836.27 and 140,329.29

Step by Step Solution

1. Step 1: Write the proportion equation
   253,499.25 : 349,836.27 = 140,329.29 : x
2. Step 2: Convert to fraction form
   253,499.25/349,836.27 = 140,329.29/x
3. Step 3: Cross multiply
   253,499.25x = 349,836.27 × 140,329.29
4. Step 4: Simplify right side
   253,499.25x = 49,092,275,385.35
5. Step 5: Solve for x
   x = 49,092,275,385.35/253,499.25
6. Step 6: Final answer
   x = 193,658.46