Finding the Fourth Proportional to 6,819.70, 9,405.57 and 4,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,819.70 : 9,405.57 = 4,022.50 : x
2. Step 2: Convert to fraction form
   6,819.70/9,405.57 = 4,022.50/x
3. Step 3: Cross multiply
   6,819.70x = 9,405.57 × 4,022.50
4. Step 4: Simplify right side
   6,819.70x = 37,833,905.33
5. Step 5: Solve for x
   x = 37,833,905.33/6,819.70
6. Step 6: Final answer
   x = 5,547.74