Finding the Fourth Proportional to 7,189.38, 10,779.82 and 2,801.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,189.38 : 10,779.82 = 2,801.72 : x
2. Step 2: Convert to fraction form
   7,189.38/10,779.82 = 2,801.72/x
3. Step 3: Cross multiply
   7,189.38x = 10,779.82 × 2,801.72
4. Step 4: Simplify right side
   7,189.38x = 30,201,976.39
5. Step 5: Solve for x
   x = 30,201,976.39/7,189.38
6. Step 6: Final answer
   x = 4,200.92