Finding the Fourth Proportional to 9,315.99, 13,972.33 and 3,076.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,315.99 : 13,972.33 = 3,076.09 : x
2. Step 2: Convert to fraction form
   9,315.99/13,972.33 = 3,076.09/x
3. Step 3: Cross multiply
   9,315.99x = 13,972.33 × 3,076.09
4. Step 4: Simplify right side
   9,315.99x = 42,980,144.59
5. Step 5: Solve for x
   x = 42,980,144.59/9,315.99
6. Step 6: Final answer
   x = 4,613.59