Finding the Fourth Proportional to 11,777.37, 17,667.58 and 3,880.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,777.37 : 17,667.58 = 3,880.69 : x
2. Step 2: Convert to fraction form
   11,777.37/17,667.58 = 3,880.69/x
3. Step 3: Cross multiply
   11,777.37x = 17,667.58 × 3,880.69
4. Step 4: Simplify right side
   11,777.37x = 68,562,401.03
5. Step 5: Solve for x
   x = 68,562,401.03/11,777.37
6. Step 6: Final answer
   x = 5,821.54