Finding the Fourth Proportional to 12,782.56, 17,654.69 and 8,526.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,782.56 : 17,654.69 = 8,526.22 : x
2. Step 2: Convert to fraction form
   12,782.56/17,654.69 = 8,526.22/x
3. Step 3: Cross multiply
   12,782.56x = 17,654.69 × 8,526.22
4. Step 4: Simplify right side
   12,782.56x = 150,527,770.97
5. Step 5: Solve for x
   x = 150,527,770.97/12,782.56
6. Step 6: Final answer
   x = 11,776.03