Finding the Fourth Proportional to 256,469.31, 353,925.72 and 141,755.76

Step by Step Solution

1. Step 1: Write the proportion equation
   256,469.31 : 353,925.72 = 141,755.76 : x
2. Step 2: Convert to fraction form
   256,469.31/353,925.72 = 141,755.76/x
3. Step 3: Cross multiply
   256,469.31x = 353,925.72 × 141,755.76
4. Step 4: Simplify right side
   256,469.31x = 50,171,009,422.15
5. Step 5: Solve for x
   x = 50,171,009,422.15/256,469.31
6. Step 6: Final answer
   x = 195,621.88