Finding the Fourth Proportional to 15,196.75, 20,972.56 and 8,483.68

Step by Step Solution

1. Step 1: Write the proportion equation
   15,196.75 : 20,972.56 = 8,483.68 : x
2. Step 2: Convert to fraction form
   15,196.75/20,972.56 = 8,483.68/x
3. Step 3: Cross multiply
   15,196.75x = 20,972.56 × 8,483.68
4. Step 4: Simplify right side
   15,196.75x = 177,924,487.82
5. Step 5: Solve for x
   x = 177,924,487.82/15,196.75
6. Step 6: Final answer
   x = 11,708.06