Finding the Fourth Proportional to 7,790.38, 10,743.42 and 5,133.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,790.38 : 10,743.42 = 5,133.16 : x
2. Step 2: Convert to fraction form
   7,790.38/10,743.42 = 5,133.16/x
3. Step 3: Cross multiply
   7,790.38x = 10,743.42 × 5,133.16
4. Step 4: Simplify right side
   7,790.38x = 55,147,693.81
5. Step 5: Solve for x
   x = 55,147,693.81/7,790.38
6. Step 6: Final answer
   x = 7,078.95