Finding the Fourth Proportional to 256,608.86, 354,112.88 and 141,885.52

Step by Step Solution

1. Step 1: Write the proportion equation
   256,608.86 : 354,112.88 = 141,885.52 : x
2. Step 2: Convert to fraction form
   256,608.86/354,112.88 = 141,885.52/x
3. Step 3: Cross multiply
   256,608.86x = 354,112.88 × 141,885.52
4. Step 4: Simplify right side
   256,608.86x = 50,243,490,117.50
5. Step 5: Solve for x
   x = 50,243,490,117.50/256,608.86
6. Step 6: Final answer
   x = 195,797.96