Finding the Fourth Proportional to 7,147.76, 10,726.20 and 5,195.12

Step by Step Solution

1. Step 1: Write the proportion equation
   7,147.76 : 10,726.20 = 5,195.12 : x
2. Step 2: Convert to fraction form
   7,147.76/10,726.20 = 5,195.12/x
3. Step 3: Cross multiply
   7,147.76x = 10,726.20 × 5,195.12
4. Step 4: Simplify right side
   7,147.76x = 55,723,896.14
5. Step 5: Solve for x
   x = 55,723,896.14/7,147.76
6. Step 6: Final answer
   x = 7,795.99