Finding the Fourth Proportional to 13,381.55, 20,076.98 and 5,986.79

Step by Step Solution

1. Step 1: Write the proportion equation
   13,381.55 : 20,076.98 = 5,986.79 : x
2. Step 2: Convert to fraction form
   13,381.55/20,076.98 = 5,986.79/x
3. Step 3: Cross multiply
   13,381.55x = 20,076.98 × 5,986.79
4. Step 4: Simplify right side
   13,381.55x = 120,196,532.78
5. Step 5: Solve for x
   x = 120,196,532.78/13,381.55
6. Step 6: Final answer
   x = 8,982.26