Finding the Fourth Proportional to 347,492, 479,535.72 and 196,589

Step by Step Solution

1. Step 1: Write the proportion equation
   347,492 : 479,535.72 = 196,589 : x
2. Step 2: Convert to fraction form
   347,492/479,535.72 = 196,589/x
3. Step 3: Cross multiply
   347,492x = 479,535.72 × 196,589
4. Step 4: Simplify right side
   347,492x = 94,271,447,659.08
5. Step 5: Solve for x
   x = 94,271,447,659.08/347,492
6. Step 6: Final answer
   x = 271,290.99