Finding the Fourth Proportional to 12,790.77, 17,654.00 and 8,596.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,790.77 : 17,654.00 = 8,596.59 : x
2. Step 2: Convert to fraction form
   12,790.77/17,654.00 = 8,596.59/x
3. Step 3: Cross multiply
   12,790.77x = 17,654.00 × 8,596.59
4. Step 4: Simplify right side
   12,790.77x = 151,764,156.88
5. Step 5: Solve for x
   x = 151,764,156.88/12,790.77
6. Step 6: Final answer
   x = 11,865.13