Finding the Fourth Proportional to 7,938.09, 10,948.25 and 5,105.79

Step by Step Solution

1. Step 1: Write the proportion equation
   7,938.09 : 10,948.25 = 5,105.79 : x
2. Step 2: Convert to fraction form
   7,938.09/10,948.25 = 5,105.79/x
3. Step 3: Cross multiply
   7,938.09x = 10,948.25 × 5,105.79
4. Step 4: Simplify right side
   7,938.09x = 55,899,439.84
5. Step 5: Solve for x
   x = 55,899,439.84/7,938.09
6. Step 6: Final answer
   x = 7,041.93