Finding the Fourth Proportional to 7,901.50, 10,902.64 and 5,105.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,901.50 : 10,902.64 = 5,105.38 : x
2. Step 2: Convert to fraction form
   7,901.50/10,902.64 = 5,105.38/x
3. Step 3: Cross multiply
   7,901.50x = 10,902.64 × 5,105.38
4. Step 4: Simplify right side
   7,901.50x = 55,662,040.16
5. Step 5: Solve for x
   x = 55,662,040.16/7,901.50
6. Step 6: Final answer
   x = 7,044.49