Finding the Fourth Proportional to 359,116.10, 495,581.72 and 197,967.61

Step by Step Solution

1. Step 1: Write the proportion equation
   359,116.10 : 495,581.72 = 197,967.61 : x
2. Step 2: Convert to fraction form
   359,116.10/495,581.72 = 197,967.61/x
3. Step 3: Cross multiply
   359,116.10x = 495,581.72 × 197,967.61
4. Step 4: Simplify right side
   359,116.10x = 98,109,128,668.09
5. Step 5: Solve for x
   x = 98,109,128,668.09/359,116.10
6. Step 6: Final answer
   x = 273,196.13