Finding the Fourth Proportional to 9,341.88, 12,891.86 and 5,150.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,341.88 : 12,891.86 = 5,150.12 : x
2. Step 2: Convert to fraction form
   9,341.88/12,891.86 = 5,150.12/x
3. Step 3: Cross multiply
   9,341.88x = 12,891.86 × 5,150.12
4. Step 4: Simplify right side
   9,341.88x = 66,394,626.02
5. Step 5: Solve for x
   x = 66,394,626.02/9,341.88
6. Step 6: Final answer
   x = 7,107.20