Finding the Fourth Proportional to 256,048.05, 353,293.56 and 147,131.34

Step by Step Solution

1. Step 1: Write the proportion equation
   256,048.05 : 353,293.56 = 147,131.34 : x
2. Step 2: Convert to fraction form
   256,048.05/353,293.56 = 147,131.34/x
3. Step 3: Cross multiply
   256,048.05x = 353,293.56 × 147,131.34
4. Step 4: Simplify right side
   256,048.05x = 51,980,554,896.17
5. Step 5: Solve for x
   x = 51,980,554,896.17/256,048.05
6. Step 6: Final answer
   x = 203,010.94