Finding the Fourth Proportional to 10,900.56, 16,347.06 and 3,107.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,900.56 : 16,347.06 = 3,107.28 : x
2. Step 2: Convert to fraction form
   10,900.56/16,347.06 = 3,107.28/x
3. Step 3: Cross multiply
   10,900.56x = 16,347.06 × 3,107.28
4. Step 4: Simplify right side
   10,900.56x = 50,794,892.60
5. Step 5: Solve for x
   x = 50,794,892.60/10,900.56
6. Step 6: Final answer
   x = 4,659.84