Finding the Fourth Proportional to 356,081.50, 491,392.47 and 197,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   356,081.50 : 491,392.47 = 197,105.50 : x
2. Step 2: Convert to fraction form
   356,081.50/491,392.47 = 197,105.50/x
3. Step 3: Cross multiply
   356,081.50x = 491,392.47 × 197,105.50
4. Step 4: Simplify right side
   356,081.50x = 96,856,158,495.59
5. Step 5: Solve for x
   x = 96,856,158,495.59/356,081.50
6. Step 6: Final answer
   x = 272,005.59