Finding the Fourth Proportional to 7,691.69, 10,613.24 and 4,287.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,691.69 : 10,613.24 = 4,287.96 : x
2. Step 2: Convert to fraction form
   7,691.69/10,613.24 = 4,287.96/x
3. Step 3: Cross multiply
   7,691.69x = 10,613.24 × 4,287.96
4. Step 4: Simplify right side
   7,691.69x = 45,509,127.15
5. Step 5: Solve for x
   x = 45,509,127.15/7,691.69
6. Step 6: Final answer
   x = 5,916.67