Finding the Fourth Proportional to 9,760.14, 14,640.81 and 3,915.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,760.14 : 14,640.81 = 3,915.99 : x
2. Step 2: Convert to fraction form
   9,760.14/14,640.81 = 3,915.99/x
3. Step 3: Cross multiply
   9,760.14x = 14,640.81 × 3,915.99
4. Step 4: Simplify right side
   9,760.14x = 57,333,265.55
5. Step 5: Solve for x
   x = 57,333,265.55/9,760.14
6. Step 6: Final answer
   x = 5,874.23