Finding the Fourth Proportional to 9,379.89, 12,943.83 and 5,400.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,379.89 : 12,943.83 = 5,400.18 : x
2. Step 2: Convert to fraction form
   9,379.89/12,943.83 = 5,400.18/x
3. Step 3: Cross multiply
   9,379.89x = 12,943.83 × 5,400.18
4. Step 4: Simplify right side
   9,379.89x = 69,899,011.89
5. Step 5: Solve for x
   x = 69,899,011.89/9,379.89
6. Step 6: Final answer
   x = 7,452.01