Finding the Fourth Proportional to 9,323.96, 12,868.79 and 5,345.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,323.96 : 12,868.79 = 5,345.10 : x
2. Step 2: Convert to fraction form
   9,323.96/12,868.79 = 5,345.10/x
3. Step 3: Cross multiply
   9,323.96x = 12,868.79 × 5,345.10
4. Step 4: Simplify right side
   9,323.96x = 68,784,942.70
5. Step 5: Solve for x
   x = 68,784,942.70/9,323.96
6. Step 6: Final answer
   x = 7,377.23