Finding the Fourth Proportional to 10,930.10, 16,395.24 and 3,139.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,930.10 : 16,395.24 = 3,139.16 : x
2. Step 2: Convert to fraction form
   10,930.10/16,395.24 = 3,139.16/x
3. Step 3: Cross multiply
   10,930.10x = 16,395.24 × 3,139.16
4. Step 4: Simplify right side
   10,930.10x = 51,467,281.60
5. Step 5: Solve for x
   x = 51,467,281.60/10,930.10
6. Step 6: Final answer
   x = 4,708.77