Finding the Fourth Proportional to 10,930.22, 16,396.42 and 3,140.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,930.22 : 16,396.42 = 3,140.18 : x
2. Step 2: Convert to fraction form
   10,930.22/16,396.42 = 3,140.18/x
3. Step 3: Cross multiply
   10,930.22x = 16,396.42 × 3,140.18
4. Step 4: Simplify right side
   10,930.22x = 51,487,710.16
5. Step 5: Solve for x
   x = 51,487,710.16/10,930.22
6. Step 6: Final answer
   x = 4,710.58