Finding the Fourth Proportional to 9,866.35, 13,613.33 and 5,886.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,866.35 : 13,613.33 = 5,886.69 : x
2. Step 2: Convert to fraction form
   9,866.35/13,613.33 = 5,886.69/x
3. Step 3: Cross multiply
   9,866.35x = 13,613.33 × 5,886.69
4. Step 4: Simplify right side
   9,866.35x = 80,137,424.14
5. Step 5: Solve for x
   x = 80,137,424.14/9,866.35
6. Step 6: Final answer
   x = 8,122.30