Finding the Fourth Proportional to 9,414.88, 12,993.15 and 5,436.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,414.88 : 12,993.15 = 5,436.16 : x
2. Step 2: Convert to fraction form
   9,414.88/12,993.15 = 5,436.16/x
3. Step 3: Cross multiply
   9,414.88x = 12,993.15 × 5,436.16
4. Step 4: Simplify right side
   9,414.88x = 70,632,842.30
5. Step 5: Solve for x
   x = 70,632,842.30/9,414.88
6. Step 6: Final answer
   x = 7,502.26