Finding the Fourth Proportional to 9,358.56, 12,914.46 and 5,109.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,358.56 : 12,914.46 = 5,109.48 : x
2. Step 2: Convert to fraction form
   9,358.56/12,914.46 = 5,109.48/x
3. Step 3: Cross multiply
   9,358.56x = 12,914.46 × 5,109.48
4. Step 4: Simplify right side
   9,358.56x = 65,986,175.08
5. Step 5: Solve for x
   x = 65,986,175.08/9,358.56
6. Step 6: Final answer
   x = 7,050.89