Finding the Fourth Proportional to 7,111.56, 9,806.67 and 4,720.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,111.56 : 9,806.67 = 4,720.69 : x
2. Step 2: Convert to fraction form
   7,111.56/9,806.67 = 4,720.69/x
3. Step 3: Cross multiply
   7,111.56x = 9,806.67 × 4,720.69
4. Step 4: Simplify right side
   7,111.56x = 46,294,249.00
5. Step 5: Solve for x
   x = 46,294,249.00/7,111.56
6. Step 6: Final answer
   x = 6,509.72