Finding the Fourth Proportional to 9,399.23, 12,970.34 and 5,150.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,399.23 : 12,970.34 = 5,150.24 : x
2. Step 2: Convert to fraction form
   9,399.23/12,970.34 = 5,150.24/x
3. Step 3: Cross multiply
   9,399.23x = 12,970.34 × 5,150.24
4. Step 4: Simplify right side
   9,399.23x = 66,800,383.43
5. Step 5: Solve for x
   x = 66,800,383.43/9,399.23
6. Step 6: Final answer
   x = 7,107.00