Finding the Fourth Proportional to 7,189.83, 10,789.61 and 2,806.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,189.83 : 10,789.61 = 2,806.72 : x
2. Step 2: Convert to fraction form
   7,189.83/10,789.61 = 2,806.72/x
3. Step 3: Cross multiply
   7,189.83x = 10,789.61 × 2,806.72
4. Step 4: Simplify right side
   7,189.83x = 30,283,373.17
5. Step 5: Solve for x
   x = 30,283,373.17/7,189.83
6. Step 6: Final answer
   x = 4,211.97