Finding the Fourth Proportional to 7,020.37, 9,688.16 and 3,876.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,020.37 : 9,688.16 = 3,876.56 : x
2. Step 2: Convert to fraction form
   7,020.37/9,688.16 = 3,876.56/x
3. Step 3: Cross multiply
   7,020.37x = 9,688.16 × 3,876.56
4. Step 4: Simplify right side
   7,020.37x = 37,556,709.31
5. Step 5: Solve for x
   x = 37,556,709.31/7,020.37
6. Step 6: Final answer
   x = 5,349.68