Finding the Fourth Proportional to 253,505.25, 380,631.69 and 141,404.49

Step by Step Solution

1. Step 1: Write the proportion equation
   253,505.25 : 380,631.69 = 141,404.49 : x
2. Step 2: Convert to fraction form
   253,505.25/380,631.69 = 141,404.49/x
3. Step 3: Cross multiply
   253,505.25x = 380,631.69 × 141,404.49
4. Step 4: Simplify right side
   253,505.25x = 53,823,030,002.29
5. Step 5: Solve for x
   x = 53,823,030,002.29/253,505.25
6. Step 6: Final answer
   x = 212,315.25