Finding the Fourth Proportional to 356,144.31, 491,479.06 and 194,999.31

Step by Step Solution

1. Step 1: Write the proportion equation
   356,144.31 : 491,479.06 = 194,999.31 : x
2. Step 2: Convert to fraction form
   356,144.31/491,479.06 = 194,999.31/x
3. Step 3: Cross multiply
   356,144.31x = 491,479.06 × 194,999.31
4. Step 4: Simplify right side
   356,144.31x = 95,838,077,579.45
5. Step 5: Solve for x
   x = 95,838,077,579.45/356,144.31
6. Step 6: Final answer
   x = 269,099.00