Finding the Fourth Proportional to 9,127.69, 13,681.71 and 3,861.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,127.69 : 13,681.71 = 3,861.47 : x
2. Step 2: Convert to fraction form
   9,127.69/13,681.71 = 3,861.47/x
3. Step 3: Cross multiply
   9,127.69x = 13,681.71 × 3,861.47
4. Step 4: Simplify right side
   9,127.69x = 52,831,546.92
5. Step 5: Solve for x
   x = 52,831,546.92/9,127.69
6. Step 6: Final answer
   x = 5,788.05