Finding the Fourth Proportional to 8,492.89, 12,741.20 and 3,559.99

Step by Step Solution

1. Step 1: Write the proportion equation
   8,492.89 : 12,741.20 = 3,559.99 : x
2. Step 2: Convert to fraction form
   8,492.89/12,741.20 = 3,559.99/x
3. Step 3: Cross multiply
   8,492.89x = 12,741.20 × 3,559.99
4. Step 4: Simplify right side
   8,492.89x = 45,358,463.08
5. Step 5: Solve for x
   x = 45,358,463.08/8,492.89
6. Step 6: Final answer
   x = 5,340.76