Finding the Fourth Proportional to 8,689.82, 13,035.34 and 3,495.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,689.82 : 13,035.34 = 3,495.72 : x
2. Step 2: Convert to fraction form
   8,689.82/13,035.34 = 3,495.72/x
3. Step 3: Cross multiply
   8,689.82x = 13,035.34 × 3,495.72
4. Step 4: Simplify right side
   8,689.82x = 45,567,898.74
5. Step 5: Solve for x
   x = 45,567,898.74/8,689.82
6. Step 6: Final answer
   x = 5,243.83