Finding the Fourth Proportional to 9,354.69, 12,909.41 and 5,162.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,354.69 : 12,909.41 = 5,162.94 : x
2. Step 2: Convert to fraction form
   9,354.69/12,909.41 = 5,162.94/x
3. Step 3: Cross multiply
   9,354.69x = 12,909.41 × 5,162.94
4. Step 4: Simplify right side
   9,354.69x = 66,650,502.81
5. Step 5: Solve for x
   x = 66,650,502.81/9,354.69
6. Step 6: Final answer
   x = 7,124.82