Finding the Fourth Proportional to 256,665.42, 354,191.81 and 141,941.03

Step by Step Solution

1. Step 1: Write the proportion equation
   256,665.42 : 354,191.81 = 141,941.03 : x
2. Step 2: Convert to fraction form
   256,665.42/354,191.81 = 141,941.03/x
3. Step 3: Cross multiply
   256,665.42x = 354,191.81 × 141,941.03
4. Step 4: Simplify right side
   256,665.42x = 50,274,347,848.30
5. Step 5: Solve for x
   x = 50,274,347,848.30/256,665.42
6. Step 6: Final answer
   x = 195,875.03