Finding the Fourth Proportional to 12,793.76, 17,634.93 and 8,536.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,793.76 : 17,634.93 = 8,536.40 : x
2. Step 2: Convert to fraction form
   12,793.76/17,634.93 = 8,536.40/x
3. Step 3: Cross multiply
   12,793.76x = 17,634.93 × 8,536.40
4. Step 4: Simplify right side
   12,793.76x = 150,538,728.28
5. Step 5: Solve for x
   x = 150,538,728.28/12,793.76
6. Step 6: Final answer
   x = 11,766.58