Finding the Fourth Proportional to 7,099.03, 10,647.69 and 1,905.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,099.03 : 10,647.69 = 1,905.31 : x
2. Step 2: Convert to fraction form
   7,099.03/10,647.69 = 1,905.31/x
3. Step 3: Cross multiply
   7,099.03x = 10,647.69 × 1,905.31
4. Step 4: Simplify right side
   7,099.03x = 20,287,150.23
5. Step 5: Solve for x
   x = 20,287,150.23/7,099.03
6. Step 6: Final answer
   x = 2,857.74