Finding the Fourth Proportional to 12,039.06, 16,621.69 and 10,777.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,039.06 : 16,621.69 = 10,777.94 : x
2. Step 2: Convert to fraction form
   12,039.06/16,621.69 = 10,777.94/x
3. Step 3: Cross multiply
   12,039.06x = 16,621.69 × 10,777.94
4. Step 4: Simplify right side
   12,039.06x = 179,147,548.73
5. Step 5: Solve for x
   x = 179,147,548.73/12,039.06
6. Step 6: Final answer
   x = 14,880.53