Finding the Fourth Proportional to 356,513.20, 491,980.32 and 195,364.72

Step by Step Solution

1. Step 1: Write the proportion equation
   356,513.20 : 491,980.32 = 195,364.72 : x
2. Step 2: Convert to fraction form
   356,513.20/491,980.32 = 195,364.72/x
3. Step 3: Cross multiply
   356,513.20x = 491,980.32 × 195,364.72
4. Step 4: Simplify right side
   356,513.20x = 96,115,597,462.31
5. Step 5: Solve for x
   x = 96,115,597,462.31/356,513.20
6. Step 6: Final answer
   x = 269,598.99