Finding the Fourth Proportional to 9,354.64, 12,908.82 and 5,162.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,354.64 : 12,908.82 = 5,162.89 : x
2. Step 2: Convert to fraction form
   9,354.64/12,908.82 = 5,162.89/x
3. Step 3: Cross multiply
   9,354.64x = 12,908.82 × 5,162.89
4. Step 4: Simplify right side
   9,354.64x = 66,646,817.69
5. Step 5: Solve for x
   x = 66,646,817.69/9,354.64
6. Step 6: Final answer
   x = 7,124.47