Finding the Fourth Proportional to 9,414.89, 12,992.69 and 5,436.35

Step by Step Solution

1. Step 1: Write the proportion equation
   9,414.89 : 12,992.69 = 5,436.35 : x
2. Step 2: Convert to fraction form
   9,414.89/12,992.69 = 5,436.35/x
3. Step 3: Cross multiply
   9,414.89x = 12,992.69 × 5,436.35
4. Step 4: Simplify right side
   9,414.89x = 70,632,758.91
5. Step 5: Solve for x
   x = 70,632,758.91/9,414.89
6. Step 6: Final answer
   x = 7,502.24