Finding the Fourth Proportional to 6,530.22, 9,789.86 and 2,145.29

Step by Step Solution

1. Step 1: Write the proportion equation
   6,530.22 : 9,789.86 = 2,145.29 : x
2. Step 2: Convert to fraction form
   6,530.22/9,789.86 = 2,145.29/x
3. Step 3: Cross multiply
   6,530.22x = 9,789.86 × 2,145.29
4. Step 4: Simplify right side
   6,530.22x = 21,002,045.17
5. Step 5: Solve for x
   x = 21,002,045.17/6,530.22
6. Step 6: Final answer
   x = 3,216.13