Finding the Fourth Proportional to 9,357.09, 12,909.57 and 5,323.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,357.09 : 12,909.57 = 5,323.50 : x
2. Step 2: Convert to fraction form
   9,357.09/12,909.57 = 5,323.50/x
3. Step 3: Cross multiply
   9,357.09x = 12,909.57 × 5,323.50
4. Step 4: Simplify right side
   9,357.09x = 68,724,095.90
5. Step 5: Solve for x
   x = 68,724,095.90/9,357.09
6. Step 6: Final answer
   x = 7,344.60