Finding the Fourth Proportional to 8,499.42, 12,749.61 and 3,569.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.42 : 12,749.61 = 3,569.28 : x
2. Step 2: Convert to fraction form
   8,499.42/12,749.61 = 3,569.28/x
3. Step 3: Cross multiply
   8,499.42x = 12,749.61 × 3,569.28
4. Step 4: Simplify right side
   8,499.42x = 45,506,927.98
5. Step 5: Solve for x
   x = 45,506,927.98/8,499.42
6. Step 6: Final answer
   x = 5,354.12